get query string into js/jquery

i hae a link like ( domain.com/jsapi?key=123456 )

hov can i get this "key" into my JS code? i use jQuery and i don't know abo开发者_如何学Pythonut its are easy way to get this "key" into JS variable.

tanks for all.

This plugin might helps: jquery url parser

key = $.url.setUrl($(yourlink).attr('href')).param('key');

(not tested)

It's not jquery. It's pure javascript. You can use regexp.

str = "domain.com/jsapi?key=123456" # Take it from wherever you want
splitted = str.split(/\?key=([0-9]+)/)

Then you'll have an array in the "splitted" variable, it's second element (at the id 1) containing the value.

jQuery not needed. The query string is available from the DOM:

window.location.search.match(/key=([^&]*)/);

Which gives you an array that has your value in it.

You can use the URL constructor as follows:

let url = new URL('https://example.com/jsapi?key=123456');
console.log(url.searchParams.get('key')); // Outputs 123456

Using this method you can parse and get any part of a URL.

Important:

• Note that I've added the protocol (https://) to the sample URL so I make sure it is a valid URL and it can be parsed.
• Take into account the browser compatibility. You can check it here

For more details you can also the the specification.