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copied!<p>You don't need jQuery for that purpose. You can use just some pure JavaScript:</p> <pre><code>function getParameterByName(name, url) { if (!url) url = window.location.href; name = name.replace(/[\[\]]/g, '\\$&'); var regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)'), results = regex.exec(url); if (!results) return null; if (!results[2]) return ''; return decodeURIComponent(results[2].replace(/\+/g, ' ')); } </code></pre> <p><strong>Usage:</strong></p> <pre><code>// query string: ?foo=lorem&bar=&baz var foo = getParameterByName('foo'); // "lorem" var bar = getParameterByName('bar'); // "" (present with empty value) var baz = getParameterByName('baz'); // "" (present with no value) var qux = getParameterByName('qux'); // null (absent) </code></pre> <p><br> Note: If a parameter is present several times (<code>?foo=lorem&foo=ipsum</code>), you will get the first value (<code>lorem</code>). There is no standard about this and usages vary, see for example this question: <a href="https://stackoverflow.com/questions/1746507/authoritative-position-of-duplicate-http-get-query-keys">Authoritative position of duplicate HTTP GET query keys</a>.<br> NOTE: The function is case-sensitive. If you prefer case-insensitive parameter name, <a href="https://stackoverflow.com/questions/3939715/case-insensitive-regex-in-javascript">add 'i' modifier to RegExp</a></p> <hr> <p>This is an update based on the new <a href="https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams" rel="noreferrer">URLSearchParams specs</a> to achieve the same result more succinctly. See answer titled "<a href="https://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript/901144#12151322">URLSearchParams</a>" below.</p>

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