How to detect URL change in SPA

Deepak Ingle

Notice

The solution should use pure Javascript - no external libraries and frameworks required.

In a SPA, everything is routed using a routing mechanism. I only want to listen to even numbers when any part of the url changes (not just the hash. Any changes I want to detect)

Following is an example of SPA,

https://www.google.in/
https://www.google.in/women 
https://www.google.in/girl

Now I want to catch the event whenever the url changes from https://www.hopscotch.in/ to https://www.hopscotch.in/women .

I tried,

window.addEventListener("hashchange",function(event){
    console.log(this); // this gets fired only when hash changes
});
Quentin

Normally, nothing happens when the URL changes. You are loading a new document (although there are load, and so on)

If you were to set a new URL using JavaScript (i.e. via pushState) , no event would occur, but you don't need this event because you've explicitly written the code in there, so just add anything else in that code i.e. Can.

If the URL is changed via pushState history via the browser back button or similar, you will receive an popstateevent .

So there is no good general way to hook into every SPA. You might come closest to using setIntervaland checking the value location.hrefto see if it has changed since the last check.

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