JavaScript - on location changed event / on url changed event

window location pathname change event

In this short article, we would like to show how inĀ  JavaScript detect if page URLĀ ( location Ā object) was changed.

In JavaScript there is no locationchange event, but there are some tricks how to do it.

Quick solution:

Better problem description

With location changed monitoring related are three cases:

  • when URL is changed inĀ theĀ  browser address bar by the user, the wholeĀ page is reloaded and there are executed two operations:Ā  unload Ā and load page - it is just opening a new page - we can use onload event to do some stuff (check this article ),
  • when location Ā is changed by History API ( pushState ,Ā  replaceState , popState ) in the source code,Ā the page is not reloaded. In this case, API doesn't provideĀ anyĀ  locationchange eventĀ - it is necessary to triggerĀ some events manually after the operation,Ā e.g. history.pushState(...); callEventLogic(); // event on location change // ... history.popState(...); callEventLogic(); // event on location change // etc.
  • when theĀ  hash Ā is changedĀ in theĀ  URL Ā ( location.hash ),Ā the page is not reloaded. API provides some eventĀ to notify that change: window.addEventListener('hashchange', function(){ console.log('onhashchange event occurred!'); }) Note: hashchange event is triggered in both chases: -Ā on change from source code, - on change inĀ theĀ  browser address bar by the user.
Summary: it is necessary to add own locationchange event support what is mentioned in second point in above list what was presented in Quick solution Ā too.

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How to detect when the browser URL changes with vanilla JS

Yesterday, we looked at how to update the browser URL without refreshing the page using the history.pushState() method .

Today, let’s look how to detect when the URL changes and do things as a result.

The popstate event

If you use history.pushState() to update the URL, when the user clicks the forward or backward buttons, the URL will change but the UI will not.

You can use the popstate method to detect those URL changes and make UI changes as needed.

Yesterday, we learned that the first property passed into the history.pushState() method is state . You can access that property on the event object.

Moving forwards and backwards through History

You can also move forward and backward through the browser’s history with a few other methods in the History API.

The history.back() method goes back one page, and the history.forward() method goes forward one page.

You can jump forward or backwards more than one page using the history.go() method. Pass in the number of pages to jump. Use a positive number to go forward, and negative number to go backwards.

Browser compatibility

The popstate event, and the back() , forward() , and go() methods all work in all modern browsers, and back to IE 10.

# window.location Cheatsheet

Looking for a site's URL information, then the window.location object is for you! Use its properties to get information on the current page address or use its methods to do some page redirect or refresh šŸ’«

https://www.samanthaming.com/tidbits/?filter=JS#2
  • Difference between host vs hostname
  • How to change URL properties
  • window.location vs location
  • window.location.toString
  • assign vs replace
  • replace vs assign vs href
  • Scratch your own itch šŸ‘
  • Community Input

# window.location Properties

# difference between host vs hostname.

In my above example, you will notice that host and hostname returns the value. So why do these properties. Well, it has do with the port number. Let's take a look.

URL without Port

https://www.samanthaming.com

URL with Port

https://www.samanthaming.com:8080

So host will include the port number, whereas hostname will only return the host name.

# How to change URL properties

Not only can you call these location properties to retrieve the URL information. You can use it to set new properties and change the URL. Let's see what I mean.

Here's the complete list of properties that you can change:

The only property you can't set is window.location.origin . This property is read-only.

# Location Object

The window.location returns a Location object. Which gives you information about the current location of the page. But you can also access the Location object in several ways.

The reason we can do this is because these are global variables in our browser.

window location pathname change event

# window.location vs location

All 4 of these properties point at the same Location object. I personally prefer window.location and would actually avoid using location . Mainly because location reads more like a generic term and someone might accidentally name their variable that, which would override the global variable. Take for example:

I think that most developer is aware that window is a global variable. So you're less likely to cause confusion. To be honest, I had no idea location was a global variable until I wrote this post šŸ˜…. So my recommendation is to be more explicit and use window.location instead šŸ‘

Here's my personal order of preference:

Of course, this is just my preference. You're the expert of your codebase, there is no best way, the best way is always the one that works best for you and your team šŸ¤“

# window.location Methods

# window.location.tostring.

This method returns the USVString of the URL. It is a read-only version of Location.href

In other words, you can use it to get the href value from the

on this šŸ˜Š. But I did find a performance test on the difference.

JSPerf: Location toString vs Location href

One thing I want to note about these speed tests is that it is browser specific. Different browser and versions will render different outcome. I'm using Chrome, so the href came out faster then the rest. So that's one I'll use. Also I think it reads more explicit then toString() . It is very obvious that href will provide the URL whereas toString seems like something it being converted to a string šŸ˜…

# assign vs replace

Both of these methods will help you redirect or navigate to another URL. The difference is assign will save your current page in history, so your user can use the "back" button to navigate to it. Whereas with replace method, it doesn't save it. Confused? No problem, I was too. Let's walk through an example.

Current Page

I just need to emphasize the "current page" in the definition. It is the page right before you call assign or replace .

# How to Do a Page Redirect

By now, you know we can change the properties of the window.location by assigning a value using = . Similarly, there are methods we can access to do some actions. So in regards to "how to redirect to another page", well there are 3 ways.

# replace vs assign vs href

All three does redirect, the difference has to do with browser history. href and assign are the same here. It will save your current page in history, whereas replace won't. So if you prefer creating an experience where the navigation can't press back to the originating page, then use replace šŸ‘

So the question now is href vs assign . I guess this will come to personal preference. I like the assign better because it's a method so it feels like I'm performing some action. Also there's an added bonus of it being easier to test. I've been writing a lot of Jest tests, so by using a method, it makes it way easier to mock.

But for that that are rooting for href to do a page redirect. I found a performance test and running in my version of Chrome, it was faster. Again performance test ranges with browser and different versions, it may be faster now, but perhaps in future browsers, the places might be swapped.

JSPerf: href vs assign

# Scratch your own itch šŸ‘

Okay, a bit of a tangent and give you a glimpse of how this cheatsheet came to be. I was googling how to redirect to another page and encountered the window.location object. Sometimes I feel a developer is a journalist or detectiveā€Š-ā€Šthere's a lot of digging and combing through multiple sources for you to gather all the information available. Honestly, I was overwhelmed with the materials out there, they all covered different pieces, but I just wanted a single source. I couldn't find much, so I thought, I'll cover this in a tidbit cheatsheet! Scratch your own itch I always say šŸ‘

# Community Input

: This is awesome, Iā€™ve used window.location.href in the past, but didnā€™t realise how simple it is to access sections of the URL!

If you want to see a live-action of what James is talking about, check out the table of content at the top of this article. Click on it and it will scroll down to the specific section of the page.

# Resources

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How to Detect a URL Change With JavaScript

How to Detect a URL Change With JavaScript

JavaScript has no native event for listening for URL changes in the browser, so to do this, you can create an interval listener that compares the current URL value to the previous value every X seconds.

We call setInterval() with a callback and 60 to invoke the callback every 60 seconds. In the callback, we check if the current URL is the same as the last URL; if it is, we perform our desired action.

For example:

A URL change is detected right away when the page is first loaded:

A URL change will also be detected when history.pushState() is called from the Change URL button's click event listener.

Detect back button click

Apart from pushState() , this approach will also work when the back button is clicked, whether by the user or with a method like history.back() .

Detect forward button click

The same thing applies to a forward button click or history.forward() :

Use detect-url-change library

Alternatively, you can use the detect-url-change library to quickly change the browser URL.

The default export is an observer on which you can attach listeners to perform an action when the URL changes.

To use detect-url-change like in this example, you'll first need to install it into your project. You can do this with the following command:

You'll also need to use a bundling tool like Webpack, Rollup, Parcel , etc.

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Get URL and URL Parts in JavaScript

Avatar of Chris Coyier

JavaScript can access the current URL in parts. For this URL:

  • window.location.protocol = “http:”
  • window.location.host = “css-tricks.com”
  • window.location.pathname = “/example/index.html”
  • window.location.search = “?s=flexbox”

So to get the full URL path in JavaScript:

A bit of a more modern way of working with URLs is the URL() global method .

If you need to break up up the pathname, for example, a URL like https://css-tricks.com/blah/blah/blah/index.html, you can split the string on “/” characters

Then access the different parts by the parts of the array, like

To put that pathname back together, you can stitch together the array and put the “/”‘s back in:

Probably the quickest way to take a peak at what you have is to put window.location in the DevTools console and see:

window location pathname change event

Really cool! Thanks!

Is there any way to extract the urls in search engine when user enters a key word in search engine by using java script…. if yes plz mail me or send me a message to 9492936947

What if i want to pull only the part after the .html For example the url example.com/abc.htm#next-section

I want to pull only “next-section”

Thanks, Nishan

It’s very easy by native JavaScript.

@Shyam Makwana

For the sake of completeness, you can also do it via document.location:

Ugh, I meant window.location

Even though both work, window.location is the safer way…

Just to mention that there was a small error:

var newURL = window.location.protocol + "//" + window.location.host + "/" + window.location.pathname;

Should have been:

var newURL = window.location.protocol + " : //" + window.location.host + "/" + window.location.pathname;

Thanks Ben, fixed that.

Just testing in ff 3.6.10 and window.location.protocol = “http:” so the is the original code (var newURL = window.location.protocol + “//” + window.location.host + “/” + window.location.pathname;) correct ?

is it possible context path…? i hope its not in browser script Eg: http://www.kalidass.com/core core is my context path. It ll be change in feature

I am getting two colons while using

working fine with

@Chris, you are still missing the colon before the forward slashes in your code: "://"

I will some day become like you guy, who knows maybe even bettter.

I have a problem in webtrends reporting where the URL of the page isn’t showing up.

The URL below is a pop-up box containing a form, but the current tracking is only capturing up to the ‘?’ and so in the reporting the page name is being displayed as ‘/’ – which of course, is not correct.

The URL is in the format http://www.domain.com/?formpage=9

Is there a way to extract the parameters at the end of this URL?

Use document.URL , split on the /’s and pick the last in the array.

split with “?” and pick the last item.

How DOES the computer know location.pathname? Can it be a filename.location.pathname instead of window.location.pathname? It is strictly for commercial purposes.

I fix the “:” error

window.location.protocol.replace(/\:/g, ”) + “://” + window.location.host

ie and firefox not send protocol in the same way

hi chris l would like to know how l can get the full url from ” a”(hyperlink) on click and use it with .load javascript . becaus l want to load it in a div thanks

alert($(location).attr(‘hash’));

var fullUrl = window.location.pathname + window.location.search; alert(fullUrl);

get url with parameters

Thanks – what I needed

How to grab the page URL when submitting enquiry form

I’m a newbie who’s stuck trying implement something like this form a web form

Can someone please provide an example of how this could be done?

this is not working very well if you send a querystring like “?test=abc/def” to the splitting function. How to avoid that?

use ‘document.URL’ for getting the full path of the current web page.

Looks like you’re missing the query/search parameters and the hash. This will get you those. :)

var newURL = window.location.protocol + “://” + window.location.host + “/” + window.location.pathname + window.location.search + window.location.hash;

Thanks for the post, found the info I was looking for.

In the code for putting it back together: don’t forget the < in the for declaration:

And to shorten this up, you could just do this:

I’m an uber-newbie. Would this js be useful for capturing the URL a user typed in and then sending them to an appropriate style sheet based on that URL?

Thanks – any comments/direction would be awesome..

You certainly could do that! But, it may be easier to keep 1 stylesheet and just append the class name to the body. You can google proper syntax here as I am a little short of time, but…

This would add “alternativeTheme” to the body of the document, and you would have a section in your css dedicated to it. For example:

Now, Im SURE there are all sorts of other ways to do this that are better or whatever. I’m sure somebody will post more about it. But this should get your wheels spinning as to what type of options are out there with a little bit of CSS and JS.

(This type of alternate theme could be done in a separate stylesheet. Using Sass would make it easier using nesting. If you aren’t familiar with Sass, check out the website at http://sass-lang.com/guide .

to access array from right to left:

secondLevelLocation[secondLevelLocation.length-1]

Um, this is AWESOME.. thanks Chris.

I think you had it right the first time…

When I use your FULL URL code, I get: http:://staging.site.com//Registration.aspx

Double : and double /

Is it a browser thing (using Chrome)?

Anyway, thanks!

Keep it simple stupid, lol.

Essentially what I’m trying to do is a video setup, where my url would be [video src="http://myweb.site/blah/blah/blah?video=mp4:Video2.mp4" /] and I want to just grab mp4:Video2.mp4 as a variable to use in javascript. This URL will always be the same (besides after the = symbol) so would my code end up being something like this?

I think that most browsers return window.location.pathname with a slash in front as that is what they are supposed to do by W3C spec.

It would be best to update the “var newURL” example to check for existing slash rather than adding it in right away.

( http://www.w3.org/TR/Window/#location-attributes )

you can just use “location” ex.

var newURL = location

Thanks for the Information :D

Hello, I need to do something very similiar. If anyone could help please.

I need a script that will extract the subdomain and add it to a new domain name to create a url that will open in a new window when clicked on.

So From This: http://subdomain.domain.com

http://newdomain.com/subdomain

window.top.location.replace(“http://newdomain.com/”+window.location.host.split(‘.’)[0]);

Hope Sandra will find a solution with this.

http://localhost/xg/xg.php#home http://localhost/xg/xg.php#group-text

i want to get #home and #group-text and rest of the div ids in my url in php how it will be possible?

Hai there, for Mannan, may be you can try use :

var url=document.URL.split(‘#’)[1];

it will return group-text.. btw, good article.. :D

Hey pal, thank you for your posting. I need it for my JS project. Best regards, Anton

Hi Everyone,

I guess there is still an error ( well, actually i get one using Safari / Firefox / Chrome on the mac platform):

The long-hand version should be:

or even (if I am right in the order) :

For the short-hand versions: After testing, they seems to work cross-browsers (..)

>Btw I was desperate to find a solution to my problem (getting a [object object] instead of an URL ;p ), and I think now I can dig it deeper & debug it out (at least)

I rarely post , but I sure follow ;p

So thanks again Chris, and all the others for the info(s)

This much helpful for me. Thanks

Really useful quick reference Chris, thanks!

Would it be worth adding window.location.search and window.location.port in there too :)?

Might want to add a < or some kind of operator into that for loop:

for ( i = 0; i pathArray.length; i++ ) {

Fixed, thanks.

var newURL = window.location.protocol + “://” + window.location.host + “/” + window.location.pathname + “?” + window.location.search + window.location.hash;

This is the full URL, it handles php events (something.php?blah=blah) and also breaks(Hashes) (like YouTube uses to detect your location in a video) Youtube.com/#videolocation=35 (Thats an example, I don’t think that’s how they actually do it off the top of my head but I do know they use pound signs haha)

Some comments above could be added to! I completely forgot about window.location.port! Nice!

this should work on all browsers (changes url from .html to .php, including double : fix)

var newurl = window.location.protocol.replace(/\:/g,'') + "://" + window.location.host + window.location.pathname.replace(/html/g,'php');

sorry, mixed syntax, better like this

var newurl = window.location.protocol.replace(/\:/g,'') + '://' + window.location.host + window.location.pathname.replace(/html/g,'php');

You forgot to the comparison term in the for loop… Thanks for your post anyway ^^

Love U Chris…

Thanks for this post, as it was very helpful. I have a question in regards to parsing out everything after the “/” in the domain. Example if I have this domain http://www.google.com/patents/US20120211565 . Is there a way to parse out the US20120211565 using a similar script???

Thanks for you assistance in advanced

var pathArray = window.location.pathname.split( '/' ); //["", "patents", "US20120211565"]

pathArray[2]; //US20120211565

Using the pop method for your array would get the end if you don’t want to have to specify the index and you know it is the everything after the last ‘/’ that you want to get.

Notice on pages like this one, it ends in a ‘/’ so there is nothing after the last ‘/’ Maybe you have a url already stored in a variabled called myURL. Then you could do something like

Thank you Milo! I have an additional question hopefully you can assist. Essentially what I’m doing is this: I have about 700+ QR codes… each code has a link to a specific Patent (the google patents url provided above). I’m writing a program that when the QR code is scanned you will be directed to the patent in the same page you scanned from using an iframe (so you can continuously scan without exiting that page). The issue is Google doesn’t allow any of their pages to be embedded iframes. The solution, I’ve downloaded all the patent PDFs and renamed each to match the associated QR patent URL. When scanned, I want to take the URL and parse out the patent # and replace it with the PDF. (Hope that makes sense)

Question: Because I will be pulling multiple patent #’s, does the code you provided above still apply? Or will this code need to be tweaked???

Thanks for your assistance!

yes you can access iframes from parent document or parent document from within an iframe. look at window object or google acessing frames or parent doc from inside frame. then just do something like window.location.href = lastChunk + ‘.pdf’ or whatever path the pdfs live in

Thanks again… I was able to figure it out. This is what I did:

Again… I appreciate your assistance… helped me find a solution!

Hey Chris Coyier, Ben Chapman is wrong, or browsers have changed since then. There shouldn’t be an added colon.

Yep, just tested in Chrome Version 25.0.1364.172 m, Firefox Version 19.0.2 and Internet Explorer Version 10.0.9200.16521 and from the consoles of all three, window.location.protocol contains “http:” with the colon. I would be surprised to learn that had changed in recent years. http://stackoverflow.com/questions/4723213/detect-http-or-https-then-force-https-in-javascript is from 2011-01-18 and appears it contained a colon then.

Alrighty, putting back to original.

Is there a way to use that code to grab part of a Dynamic URL string and insert into a tracking code so I can track where leads and conversions came from?

It would need to go in the html code here where the value= would be what is dynamic.

And the URL string would be http://mywebsite.com/?c1=%5Bcsid%5D and the [csid] would be the variable that changes depending on where the traffic came from

such as http://mywebsite.com/?c1=%5Bcsid%5D becomes http://mywebsite.com/?c1=http://anywebsite.com

and the http://anywebsite.com is what would be needed to be inserted into the value= part

Any help would be appreciated.

Just noticed when I inserted the code, it disappeared from my comment. the html code it would have to be inserted into would look like this “input type=”hidden” name=”TrackerName” value=”test/” ”

Let me see if this gets through

This function should be help specially when we use a local server:

function getBaseURL() { var url = location.href; // entire url including querystring - also: window.location.href; var baseURL = url.substring(0, url.indexOf('/', 14)); if (baseURL.indexOf('http://localhost') != -1) { // Base Url for localhost var url = location.href; // window.location.href; var pathname = location.pathname; // window.location.pathname; var index1 = url.indexOf(pathname); var index2 = url.indexOf("/", index1 + 1); var baseLocalUrl = url.substr(0, index2);

return baseLocalUrl + "/"; } else { // Root Url for domain name return baseURL + "/"; }

Maybe something like this can be handy …. getUrlBase = function () { return location.protocol.split(‘:’)[0] + ‘://’ + location.host + ‘/’; } getUrlPart = function (idx) { var parts = location.href.substring(getUrlBase().length).split(‘/’); return (parts.length >= idx && idx > 0) ? parts[idx – 1] : ”; } getUrlBase(); // will give you “https://css-tricks.com/” on below url getUrlPart(2); // will give you “javascript” on below url url: “https://css-tricks.com/snippets/javascript/get-url-and-url-parts-in-javascript/”

I use the following function to get the url parameters in an array form:

Dot notation

Square bracket notation

Thanks, Mohamed

Yup, it works perfectly for me.

Thanks, Himansu

I was able to use your code and was able to pull the following:

document.write(“Names of incoming vars: ” +vars+ ” “); document.write(“Name of first incoming var: ” +vars[0]+ ” “);

I am now attempting to pull the unique value found in each incoming variable name. Suggestions welcome.

All the best,

In my case I used like that for extract last name with out .html.

Great Thanks for posting……….

var pathArray = window.location.pathname.split( ‘/’ );

alert(pathArray[pathArray.length-1].replace(/.html/g,”));

The pathname worked awesome when I needed to find the name of the file I was viewing (index.htm) when it wasn’t in the url.

how we remove the spaces from url plzz suggest..thanks in advance

How to get URL Name i mean suppose if url is https://www.google.com I need url name is (GOOGLE).Please any one help in this

Harish, I do it like this when needed:

Ooops … something went wrong on host variants … obviously a “http://” were added to hosts starting with “www”

And of course this is how the for-loop should be:

Hi Pelle, Thanks for ur response But we cant put all domains in array why becoz now a days somany domains are avaialable.I mean suppose 1000 domains are there means we cant put thousand in array right. Thanks, Harish

There aren’t 1000’s of top level domains, there are about 300 and this is the only way to detect the domain name in the way you asked for.

After a quick googling I found http://publicsuffix.org/ , where you will find a list of them and more info how to use the list.

You will also find libraries you can use to parse and find the top level domain, but it’s still a list that your host name needs to be compared against.

Thanks for putting this information. pathname was what I was looking for.

Simply but SOOOOO useful. Thank you for posting.

I need HTML Help: this is a simple search box but i need it to do this

Heres the original url: site.com

Heres the url when i type : test1 in the search box: site.com/?q=test1

Heres what i NEED it to look like when you type : test1 into the search box: site.com/test1.php

cant figure out how to use the #replace# feature

You add a name to the form and an onsubmit event, where you catch and do your stuff.

If you still want to submit the form, change form method from “get” to “post” to get rid of “?q=test” in the url and use this script instead of above

thanks :) after hours-got it working

I have a requirement as follows: we have two application one in English and other in chinese. Ex: home pages: ‘http://mysite.com/en/home/index.html’ ‘ http://mysite.com/ch/home/index.html ‘ Press release pages: ‘http://mysite.com/en/home/pressreleases/index.html’ ‘http://mysite.com/ch/home/pressreleases/index.html’

Now when i select EN(language option on header) on chinese press page( ‘http://mysite.com/ch/home/pressreleases/index.html’) this link take me to English home page. i should make this to redirect EN pressrelease page directly. Am trying this with below solution. sample logic: function chooseLang() { // http://mysite.com/ch/home/pressreleases/index.html

var currURl= window.location.href; var urlArray= window.location.pathname.split( ‘/’ ); var isCHorEN = urlArray[0]; if (isCHorEN ==’ch’) { newUrl=… } else if(isCHorEN ==’en’) { newUrl=.. }

Could someone provide code snippet on this. Thanks in advance.

window.location.pathname includes the first forward slash so “/ch/home/pressreleases/index.html” in your example so you’ll want index at 1, not 0 to get “ch” or “en”

A better solution for your problem might just be to change location with a String.replace() call https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace

so window.location.href=window.location.href.replace(“/ch/”, “/en/”) if they choose english from chinese, window.location.href=window.location.href.replace(“/en/”, “/ch/”) if they choose chinese from english, and nothing if they choose the same language they are currently on.

Merry Christmas every one … :)

Hello; I was looking around and probably I wasn’t looking right … Anyway I’m trying something (even it’s been already made) but used it with PHP (sending par with urls …) so got something like this index.php?size=500×500 , but i’m wondering if there’s any JS way to make it index.php/500×500 only and even if you change the par in the link can work …

Thank you for help :)

simply but so useful. thank you for posting

You may add the file name trick: location.href.split(“/”).slice(-1) This is cool to customize nav box’s link to current page by adding a class with enlighting styles. $(‘.menu a’).each(function() { if ($(this).attr(‘href’) == location.href.split(“/”).slice(-1)){ $(this).addClass(‘curent_page’); } });

Nitpick: window.location.protocol = “http” (on line 3 in the article) is incorrect, you get the colon too: window.location.protocol = “http:” (this is as of Chrome 34 and Firefox 29).

Sir, i want dynamically get URL of all open browser & write the URL in text files.. so plz provide the script or source code in jsp… i hope reply….

that is exactly i was searching for, you are awesome “Chris Coyier”

I wanted to retrieve the url from current working browser in my system by using java program.So what i have to do suggest me….plz

I’ve been searching for a way to add certain domains to a sites header (eg -> ` var varurl = “http://linkguard.biz/secure.php?link=”; var shortem = [‘google.com’, ‘putlocker.com’, ‘netload.in’, ‘uploaded.net’, ‘rapidshare.com’, ‘yoursite.com’, ‘yoursite.com’, ‘yoursite.com’, ‘yahoo.com’, ‘yoursite.com’, ‘yoursite.com’, ‘yoursite.com’, ‘yoursite.com’, ];

So every domain you enter in here (I borrowed this from a site that uses this method, however after days of trial and error & resarch I’m at my wits end (JS & PHP are not my strong suits – this will be uploaded to a WordPress installations directory hopefully as a get.php file that acts like-: a page with a button on it ‘Continue to Link’ so this can be used as a way for users to have an interim page inbetween for affiliate banners/advertising.

It’s basically a Redirection Script, with an interim page inbetween. I wanted to put a captcha.php?link=hdhGHSOOEDjkkOOPSPSPnnAwKLd type situation in there, that the captcha had to be filled before being directed to the get.php page though this seem like alot of work for whoever is willing to give me the get.php code needed (and another page perhaps?) for this to work!

This is from a site called Linkguard, however it was recently just apart of a WordPress Site & worked in-house until the Author decided to move it off to it’s own site to let other’s use it – however this is not my goal. Aslong as it works on domain(s) I can put the code into manually (as above – or similar) & can easily upload a .php file to wordpress, or any site for that matter where links are directed through this if they sport the domain name required.

WOW! What a long post, it came off way more complex in writing it out, then it looks from the source codes I could make heads or tales of…

I have searched google numerous times and there is nothing quiet like this, that I can find anyhow. I have stumbled across something similar I could have worked with years ago, but it is now lost in the interwebs somewhere – and CSS-Tricks.com was high up on the keywords for this, and it looks like there are Codes Above ^^ that are getting pretty darn close.

Cheers to anyone that has the patience to help me out here. And well anyone that has read this far LOL.

MUCH APPRECIATED! @jaycameron

Oops I ruined the code block, I have this trouble on forrst too. Argh!

I could not put the on each side of the JS script tags for some reason…

Thanks Again Guys & Chris!

how do i detect if it’s not on a subpage? shouldn’t something like if (window.location.pathname == false) work? i want to make code that detects if you are on the home page, then sends you to a subpage, but if you are on a subpage, it won’t redirect.

It should be something like:

yeah i got it working! the problem was, i couldn’t figure out what “pathname” was returning when you weren’t on a subpage. (my homepage is not on a subpage) apparently it returns “/” so i did:

and now it’s working 100%. now on to the real problem: making it redirect to a different subpage at a different time of day (but again only from the homepage)

Maybe something like this:

here’s what i’ve settled on, it isn’t doing a redirect loop so im assuming it’s working. i’ll wait until 8 pm since i dont want to change it anymore and tell you if it worked

Hi Friends .. need your help in this please :) I have a page : http://192.168.2.2:4444/pages/hello.html if visited , then redirected to the following page http://192.168.2.2:5555/cgi-bin/hello.cgi?mode=welcome Thanks !

I ended up using the following, which works for full URLs, as well as relative ones:

Use window.location.hostname instead of window.location.host

eg. example.com:8888

window.location.hostname = example.com window.location.host = example.com:8888

Hey thanks for a great post. I have a requirement to extract the ‘&country’ parameter from my URL and putting it at the start of the query string – any ideas?

  • PellePenna Permalink to comment # October 2, 2014 // Split the pathname var params = window.location.search.split('&'); // Remove first ? if any params[0] = params[0].replace('?', ''); // New pathname var newsearchstring = ''; // Loop params and look for country for(i=0;i<params.length-1;i++) { var param = params[i].split('='); if (param == 'country') { // found it, add it first newsearchstring = (newsearchstring.length > 0 ? '&' : '?') + params[i] + newsearchstring; } else { // found other, add it at end newsearchstring += (newsearchstring.length > 0 ? '&' : '?') + params[i]; } } // Now you got the "newsearchstring" with country first

Oooops .. made some mistakes in previous comment:

how to get url when system ideal

Are there any drawbacks for using window.location.href to get the full location?

Its nice ! But I wanna know how to get the url part after a “=” equal icon !

I want to redirect to the url(I’m trying to do it) after the equal to icon ! :-D

Please tell me the answer for this question !

If you are looking to get the root URL ( http://www.example.com/ ) from any URL, this one line of code will do it for you:

If you are looking to get the base URL ( http://www.example.com/something/ ) from any URL, use these two lines of code:

Further explanation and complete functions to copy/paste here: Javascript: Get base URL or root URL

I have some problem.

for example, i have this link : http://example.com/index.html?id=lunch

I want to take “lunch” on my script using “if function”. How I can do it?

I mean, the main script like this. If id=lunch, then do write text on page “enjoy your lunch!”.

help me please…

Not sure but check split in javascript. Also c# has split function too. Ä°f u are using mvc you can just assign variable like id from route config

if my url is http://www.domain.com and i want to get only domain.com without using split

Simple but that’s what I’m looking for. thanks a lot.

Just wanted to say that i like your page a lot. I`m learning CSS and Javascript and you page will come in handy. Thank you.

frnds, i need a feature extraction of a particular url. i want to find a rank of the url if i gave http://facebook.com means it should go to http://www.alexa.com and the rank of the url will be display in the webpage i want to save that rank value into mysql database.pls help me to get this code

Hello. This is good and I got a doubt. suppose we have a url www.google.com/?go= And I want to get the part after that ?go= thing. And I want to redirect to the url after that go= ! Can anybody tell me how to do this? All I wanna do is that just redirect to the url after go= !

Very useful! thanks!

Saved me today. Thank you!!!

var url = window.location.host + window.location.pathname; window.location.href = “http://”+url;

Dude you are awesome.. I’ve been searching and searching for that and all the websites were useless at this subject even stackoverflow. You literally saved the day for me.

send the code to get the url while clicking the button

I think some browsers (probably old ones) might render the script invalid.

I recommend replacing this with

because my phone thinks of the “//” as a comment.

I am looking for that i want to get all urls into array or txt from google search with using javascript.My code does the search part but i also need urls. Does anybody help me ? Thanks in advance

I am using window.location.href.split(“=”)[1] to capture query strings values and send through a form. My url is like this example.com?source=qs1

My issue is google adwords appends a gclid value that gets parsed as well, so I get source=qs1&gclid

Any way for me to get rid of anything that comes after the &?

Thanks in advance.

Thank you so much for these tricks. Very useful to me.

hi admin how are you can you tell me which method to create script like

websitename.com/link.php

if am use any link from our website its showing like

websitename.com/link.php?url=md5 and open external link like indishare or many of other external links generater sites please help me ?

simply use window.location.href to get full path of url :D

We’re now living in 2016 and I really think the stitching in the last example should be replaced by:

unless you want to leave the n first or n last parts out:

or if you only want the n last elements:

Typo: this should be third to last element ofcourse.

Thant’s it! Thank you!

I’ve been looking around and find this to be the best possible way to get the whole url ( proto://hostname:port ) in the shortest bit of code:

In your bullet points at the topā€” window.location.pathname = "example/index.html" ā€”should beā€” window.location.pathname = "/example/index.html"

I hope someone is still active here!

I need a code for the following situation:

I want to extract the ‘CATEGORY’-name in the following URL. The CAPS words are variables.

Thanks in advance!

Hello ā€“ I am not a developer but I need to custom my AddToAny plugin with JavaScript

On a specific page: https://www.mysite/bravo/?r=number . I would like in the share plugin AddToAny to use the current page url but I need to remove the /bravo .

In other word I need to keep only the ?r=number and add in front of it in text the default url.

I did this but it takes the actual url

Anyone can help??

I’ll be very grateful if someone can help with this solution. I’m trying to get the hashtag from a url so when a link is clicked from page1 to page2, it can jump to the actual section on page2. Now this is easy for me if the link is http://www.example.com#anchor1 (I can easily extract the anchor, but having problem on how to get the hashtag if I have something like this http://www.example.com#anchor1?offer=35&cm=180430_offer1&RegID=-100000&RegID1=-1724956&RegID2=0&mcode=180430_PRO_INA_034_1 Many thanks.

nice tutorial. but i still have a question. my url is something like this ( https://mysite.com/?lang=en ) now i want to create a condition using JS to show something or not depending on the language parameter (lang) in the url. can you guys help with it?

I would add window.location.hash for the anchor part, f.i. #hash in https://example.com/#hash .

if(window.location.host==”www.isecpwm.com”) { if(window.location.pathname==”/index.html” || window.location.pathname==”/” ) { alert(‘isecpwm : homepage’); } else if(window.location.pathname.includes(‘/’ || ‘.html’)) { alert(‘isecpwm : ‘ + window.location.pathname.slice(1,-5)); } else { alert(‘isecpwm :’ + window.location.pathname.slice(1)); } } else { alert(‘wrong page’); }

how do i simplify this code

HEY. This helped me so much. Thanks.

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window location pathname change event

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React: Navigation Without React-Router

Table of contents contents, window.location, showing content based on pathname, building a re-usable route component, implementing a header for navigation, preventing full page reload, creating a link component, prevent page reload, change the url, communicate url change to route, get route component to re-render itself, open link in new tab with command click, github repo.

The React-Router library is by far the most popular way to navigate around a React application. However there are times when you may not want to use this library. For example if you donā€™t want to have to update your application when the React-Router library makes a breaking change, which is about once a year.

For our sample we are going to take our Widgets application that we have been working on and create a manual navigation between our different widgets.

One of the things that is fundamental to understand is the window.location read only property of the window interface.

In short, in a browser, each tab represents a Window, and each window contains a DOM document (a web page).

There is a global variable exposed to JavaScript code called window , which has various properties, one of which is window.location.

and then within that property we can see another very important property called pathname

Now that we know we can check the property window.location.pathname we can use that knowledge to hide or show content based on the value of this property. For example let us re-work our App.js file to try this out.

We create a new function that returns our Accordion component if our location condition is met, and then call that function in the return section of the app.

And as expected we can only see our dropdown on the homepage now.

We can easily follow this pattern to build a navigation for the rest of the widgets.

And this all works as expected. If you go to /search you see the search widget, etc etc.

There are some downsides to this however. For example, this code is not DRY. We have lots of repetitive checks going on here.

We could do something like this.

But in React the preferred way to do things is with components. So let us build a component for navigation. First we make a new component called Route .

Note that instead of passing in the component as a prop directly we passed in children which will pass in any components that are children of an instance of the Route component. In this way we can show multiple different components on each route. Also note that we did not need to import React into this component because it does not contain any JSX. Exports/Imports (AKA modules) are actually a function of Node, as we learned when we were working with Express.

Then we would re-write our App to be the following.

And we can see that our /all route component displays all of the children

This is simple enough. We just create a new component with some links and some Semantic UI styles.

and then import that component into our application.

This is great but currently the browser is completely reloading the whole page every time we click on one of these nav items. That means we are reloading all our JavaScript and CSS every time we click on a nav link. Letā€™s improve this.

To start let us create a new component called Link that will allow us to add event handlers to links. As props for this new component we will feed it everything that a normal link requires, including CSS classes, a destination href, and we will use the children prop to feed it the link text.

We then replace all our links in our Header with our shiny new Links component.

and we can see that all the information we needed gets passed in as props, just like if these were plain HTML links.

Now we want to go about adding our new functionality, which is to prevent the page reload. To start we will add a click event handler to our Link components.

Using the preventDefault() method we have successfully stopped the page from reloading, as well as doing anything else. Now we need change the visibility of the URL and the content without actually reloading the page.

So what is the point of even changing the URL if we can just change the content dynamically without reloading the page? Simply because users expect to be able to bookmark certain portions of your site so that they can return to them. It is not strictly necessary for functionality, but is absolutely best practice.

There is a method built into the browser to manually update the URL. window.history.pushState() MDN: history.pushState

Knowing that we can add that to the click listener on our Link component

and note that we passed in the href prop as the url to update to.

We are successfully updating the URL when we click the Link components now. And now we need to alert our routes that the URL has changed, so that they can update the content in the window. We can do this with another native window method called window.dispatchEvent() and a React method called PopStateEvent()

which then gets received in our Route component like so.

What we did there was create a custom event, like ā€œclickā€, and we called it popstate , and told that event to get triggered every time the URL changes. Then we added an event listener to our Route component, and said that every time the event popstate occurs we fire the function onLocationChange() , which currently just creates a console log. Then we added a cleaner function to clean up the event listener.

If any part of this is confusing you will want to reference the post where we learned about the useEffect hook here Ncoughlin: React Hooks useEffect and then we learned about the CleanUp Function here Ncoughlin: React Throttling API Requests #cleanup-function

And this is currently working, every time we click on a link we are getting FIVE console logs (one for each route).

Now that the Route is able to detect when the URL has changed, we are going to introduce a piece of state that is going to cause the Route to re-render itself. Remember that a component always re-renders when a piece of itā€™s state changes, so that is what we are going to do, introduce a state and update it every time the URL changes.

In the third highlight we changed the boolean to compare the state currentPath instead of the current URL window.location.pathname , this is just for clarity as the purpose of the state to re-render the component has already been achieved, the component would still work with the window pathname as we have set currentPath to be equal to it anyways.

Some users expect that you will open a link in a new tab if you hold the command key, so we are going to implement that functionality.

Inside of our check above you can see event.metaKey and event.ctrlKey , these are boolean properties of the mouse event. You can view a full list of available mouse event properties here MDN: MouseEvent

Ncoughlin: React Widgets

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Location: pathname property

The pathname property of the Location interface is a string containing the path of the URL for the location. If there is no path, pathname will be empty: otherwise, pathname contains an initial '/' followed by the path of the URL, not including the query string or fragment.

Specifications

Browser compatibility.

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How to change page url and detect event without refresh.

In the last tutorial about changing the page URL we used history pushstate, and in this part of tutorial seriers I will show you another method to change the page url without refresh but this time we will use window location hash. This method is good enough, the bad part at this method is the URL because it will have # in it, but with few lines of javascript you can get rid of it. Using window location hash you can use all the browser features like back or forward buttons because the browser will save the hash location in browser history. As the title said we can detect any url change if we use the location hash javascript feature. You can use this method when you have a site with ajax because you can send any parameters you need in the browser url and then get them in javascript or php.Ā 

To add a new hash in the url you have to run the following code:

With the above line of code we will add #aboutus-page to the URL and the page won't refresh. From here we can do everything we need with this parameter. If we want to remove it we can use the following line of code:

If you don't want to add hash to your URL you can choose other methods like history push state, which is html5 feature and it works almost like window location hash, but in my opinion window location hash is more stable and you can detect any url change with it. You can learn more about how to change url with history push state here.

Using the following function you will be able to detect any url change (or any hash change). You can make this function once, and every time when you will use window.location.hash the function will be triggered.

With the above function you will be noticed every time a hash is changed so you can do any functions at hash change. This is how you can change the url without refresh using location hash.

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JS Reference

Html events, html objects, other references, window location.hash.

Get the anchor part of the URL:

Set the anchor part:

Description

The location.hash property sets or returns the anchor part of a URL, including the hash sign (#).

When location.hash is used to set the anchor part, do not include the hash sign (#).

Return the hash property:

Set the hash property:

Return Value

Browser support.

location.hash is supported in all browsers:

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  2. How to Change Location on Windows 10

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  4. 3 Ways to Change Location Settings in Windows 8

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  5. [Solved] Add Header to window.location.pathname

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COMMENTS

  1. Event when window.location.href changes

    13 Answers Sorted by: 199 +50 I use this script in my extension "Grab Any Media" and work fine ( like youtube case ) var oldHref = document.location.href; window.onload = function() { var bodyList = document.querySelector("body") var observer = new MutationObserver(function(mutations) { if (oldHref != document.location.href) {

  2. Location

    Instance methods Location.assign () Loads the resource at the URL provided in parameter. Location.reload () Reloads the current URL, like the Refresh button. Location.replace () Replaces the current resource with the one at the provided URL (redirects to the provided URL).

  3. Window: hashchange event

    js function locationHashChanged() { if (location.hash === "#cool-feature") { console.log("You're visiting a cool feature!"); } } window.onhashchange = locationHashChanged; Specifications Specification HTML Standard # event-hashchange HTML Standard # handler-window-onhashchange Browser compatibility Error loading BCD data See also

  4. Window: location property

    English (US) Window: location property The Window.location read-only property returns a Location object with information about the current location of the document. Though Window.location is a read-only Location object, you can also assign a string to it.

  5. JavaScript

    In JavaScript there is no locationchange event, but there are some tricks how to do it. Quick solution: xxxxxxxxxx 1 // Put following code on the top of head element: 2 3 ; (function() { 4 var pushState = history.pushState; 5 var replaceState = history.replaceState; 6 7 history.pushState = function() { 8 pushState.apply(history, arguments); 9

  6. How to detect when the browser URL changes with vanilla JS

    You can access that property on the event object. window.addEventListener('popstate', function (event) { // Log the state data to the console console.log(event.state); }); Moving forwards and backwards through History # You can also move forward and backward through the browser's history with a few other methods in the History API.

  7. window.location Cheatsheet

    Scratch your own itch šŸ‘ Community Input Resources window.location Properties Difference between host vs hostname In my above example, you will notice that host and hostname returns the value. So why do these properties. Well, it has do with the port number. Let's take a look. URL without Port https://www.samanthaming.com

  8. Location pathname Property

    Description The pathname property sets or returns the pathname of a URL (page). Syntax Return the pathname property: location.pathname Set the pathname property: location.pathname = path Property Values Return Value Browser Support location.pathname is supported in all browsers: Previous Location Object Reference Next W3schools Pathfinder

  9. JavaScript Window Location

    Result is: Page hostname is www.w3schools.com Try it Yourself Ā» Window Location Pathname The window.location.pathname property returns the pathname of the current page. Example Display the path name of the current URL: document.getElementById("demo").innerHTML = "Page path is " + window.location.pathname; Result is:

  10. Window: popstate event

    English (US) Window: popstate event The popstate event of the Window interface is fired when the active history entry changes while the user navigates the session history.

  11. How to Detect a URL Change With JavaScript

    const urlChangeIndicator = document. getElementById ( 'url-change-indicator' ); let prevUrl = undefined ; setInterval ( () => { const currUrl = window. location. href ; if (currUrl != prevUrl) { // URL changed prevUrl = currUrl; console. log ( `URL changed to: $ {currUrl}` ); urlChangeIndicator. textContent += `New URL: $ {currUrl}\r\n` ; } },...

  12. Window Location Object

    The Window Location Object. The location object contains information about the current URL. The location object is a property of the window object. The location object is accessed with: window.location or just location.

  13. Get URL and URL Parts in JavaScript

    I have a problem in webtrends reporting where the URL of the page isn't showing up. The URL below is a pop-up box containing a form, but the current tracking is only capturing up to the '?' and so in the reporting the page name is being displayed as '/' - which of course, is not correct.

  14. React: Navigation Without React-Router

    In the third highlight we changed the boolean to compare the state currentPath instead of the current URL window.location.pathname, this is just for clarity as the purpose of the state to re-render the component has already been achieved, the component would still work with the window pathname as we have set currentPath to be equal to it anyways.

  15. regex

    You could always use the various location properties to recreate the part you need and append the new part to it: window.location = location.protocol + "//" + location.hostname + "/NewPath"; Indeed. I could add it, but I think @JasonHarwig has the best solution.

  16. Location: pathname property

    References pathname Location: pathname property The pathname property of the Location interface is a string containing the path of the URL for the location. If there is no path, pathname will be empty: otherwise, pathname contains an initial '/' followed by the path of the URL, not including the query string or fragment. Value A string. Examples js

  17. javascript

    5 Answers Sorted by: 60 window.history.replaceState ( {} , title, new_URL ); This will update the current page URL with a new one without refreshing. Arguments: Data object (must be one that could be serialized to text) The new title of the changed window URL The URL to change to (without refreshing)

  18. How To Change Page URL And Detect Event Without Refresh

    To add a new hash in the url you have to run the following code: window.location.hash = 'aboutus-page'; With the above line of code we will add #aboutus-page to the URL and the page won't refresh. From here we can do everything we need with this parameter. If we want to remove it we can use the following line of code:

  19. Location hash Property

    Learn how to use the location hash property in JavaScript to get or set the fragment identifier of a URL. The location hash property can be used to create bookmarkable links and navigate within a single page. W3Schools provides examples and exercises to help you master this topic.