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jeandcr/query_string.js

Created November 16, 2018 16:09
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Return a URL query string by key.
Raw
query_string.js
/**
*
* Returns a URL query parameter by it's key.
* eg. You have a URL: http://host.com/some/path?uniquekey=value
* The function call qs('uniquekey') returns 'value'
*
* @param key string
* @return string
*
*/
function qs(key) {
key = key.replace(/[*+?^$.\[\]{}()|\\\/]/g, "\\$&"); // escape RegEx meta chars
var match = location.search.match(new RegExp("[?&]"+key+"=([^&]+)(&|$)"));
return match && decodeURIComponent(match[1].replace(/\+/g, " "));
}
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