@PavelNikolov I think it would introduce difficulties getting sometimes an array and sometimes a value. There's a polyfill available but if you want a tiny function for basic query string parsing, the following is a function stolen from the A-Frame VR toolkit which parses the query string to get the key's value you'd like: In this article I’m going to present how to get a URL parameter with JavaScript. its value shud be 'a=b' but you only get 'a' because you split 'one=a=b' on '='. JavaScript Fallback. The static method has the following sub methods that can be called on the subject URL:It seems easier and more efficient to me to read the query string once in my application, and build an object from all the key/value pairs like:Roshambo jQuery method wasn't taking care of decode URLJust added that capability also while adding in the return statement I needed an object from the query string, and I hate lots of code. I write beautiful markup.I make the Web useful. Those two downvoters probably missed (like I just did) the fact that you have to use @Melab it's still good in that it provides a simple API for all the weird regexing in the other answers here. I think that is the only reason.As @BenjaminGruenbaum joked, I too don't quite see the point in benchmarking the performance of URL parsing. Repeating the regular expression search every time the script needs to access a parameter is completely unnecessary, one single function to split up the parameters into an associative-array style object is enough. Whoever decides on this should check the repo first. Tagged with javascript, webdev, beginners, showdev. The point of jQuery is convenience.comments disabled on deleted / locked posts / reviewsYou don't need jQuery for that or any other purpose. Repeating the regular expression search every time the script needs to access a parameter is completely unnecessary, one single function to split up the parameters into an associative-array style object is enough. Here's how to accomplish that feat using jQuery. People don't use jQuery because it does stuff that JavaScript can't do. Though URLSearchParams works well for the usecase. JavaScriptでは、URLのパラメーターを"document.location.search"で取得できます。ただし、URLのパスの後ろのパラメーターの文字列をまとめて取得することしかできないため、各パラメータの値の取得は取得した文字列を解析する必要が const url = window URL For those of us using a fairly strict setup of JSHint swap the This is also a nice approach, string splitting instead of using regular expressions. Full Stack Engineer. Microsoft Edge is its successor – or use older browser technologies to achieve roughly equivalent functionality.I’m a total novice when it comes to understanding the logic behind how javascript parses values and the ‘order of things’ but here’s what I’m trying to do and perhaps someone can point me in the right direction?I have a form that redirects on submit to a ‘thank you’ url likeI need to extract ‘number’ and insert it into an pixel img URL such as:Since it seemed like everyone kept wanting dictionary access here’s one I wrote up that can return a whole dictionary of query parameters or a single parameter with optional no-decode.For example, if you add some query parameters to this page and try it out: @katsh Yes indeed, it works in >=IE9, however, you can teach your javascript processor Flattened out a bit for readability, made into a function, and re-used split call: function parseQueryString() { var qd = {}; location.search.substr(1).split("&").forEach(function(item) { var parts = item.split("="); var k = parts[0]; var v = decodeURIComponent(parts[1]); (k in qd) ? Using Also, better to go for decodeURI() or decodeURIComponent() instead of unescape(). Get query string from URL with JavaScript - Use location.search to get query string parameters in JavaScript. Opacity is a very simple but effective...So on a tiny snippet like this, I wonder if caching the generated RegExp would help or hurt perf:Honestly, why are you even thinking about performance for something like that? ~2.2% market share at the time of this comment. Like others have said, it's unbelievable these answers are reinventing the wheel and getting so many votes, when this should be implemented in a well-tested library.Very neat! Everything jQuery does, it does using JavaScript. from the URL. + 1).split('&'); for (var i = 0; i < url.length; i++) { var urlparam = url[i].split('='); if (urlparam[0] == param) { return urlparam[1]; } }I've been using this for a while now, and it's been great so far. It’s not like something you need to do hundreds of times every second.Too bad you can’t get object, with all parameters, with this API and you need to know what parameter to get.Forgive me if I am wrong, but i am fairy certain the url to custom the AddToAny share link. but it wasn't until AJAX-driven web apps became popular that we relied too much on them on the client side. 'name' is not properly escaped, it's just directly injected into the RegExp. See This is an interesting approach, returning an array containing values from the specified parameters. @zachleat if you don't have a framework your functions will just get spread across your code. In this article I’m going to present how to get a URL parameter with JavaScript. While URLSearchParams is ideal, not all browsers support that API. Learn how to Get Query String Parameter Values From URL Using JavaScriptWe can get query string parameters in JavaScript without using 3rd party js like jQuery etc by usingJavascript Query string URL parameters are very useful while doing CRUD operations on the server side.& from client side also we might need to get query string parameters from URL using JavaScript & modify them.To get query string parameters in JavaScript,use JavaScript Now we will use the regular expression to match pattern (“a=b”) and return paramters in json key value pair.And if you are not passing URL parameter, it will take the current url from In JavsScript,to get the query string parameters in JSON format use the following ES6(ECMAScript 6) Code snippetTo get query string parameter values in JavaScript, We can use The string parsing mechanism is ugly and old way of doing getting query string parameter values.If you are using latest browsers like Firefox 44+, Opera 36+, Edge 17+, Safari 10.3+ and Chrome 49+ you can use Use the following code snippet to get query string parameters from current URLIf you want to get query string parameter for any url, Use the following JavaScript code snippetApart from get(key) method UrlSearchParams also have methods like has(key) , getAll(key) , append(key,value), toString().To get URL parameter values by name in JavaScript, use the following code snippet.Now we can pass the parameter name to the above method to get URL parameter values.With the above function, you can get individual URL parameter values by passing the parameter name and URL.