JavaScript query string [closed]

Question

Is there any JavaScript library that makes a dictionary out of the query string, ASP.NET style?

Something which can be used like:

var query = window.location.querystring["query"]? 

Is "query string" called something else outside the .NET realm? Why isn't location.search broken into a key/value collection ?

EDIT: I have written my own function, but does any major JavaScript library do this?

Answer 1

You can extract the key/value pairs from the location.search property, this property has the part of the URL that follows the ? symbol, including the ? symbol.

function getQueryString() {   var result = {}, queryString = location.search.slice(1),       re = /([^&=]+)=([^&]*)/g, m;    while (m = re.exec(queryString)) {     result[decodeURIComponent(m[1])] = decodeURIComponent(m[2]);   }    return result; }  // ... var myParam = getQueryString()["myParam"]; 

Answer 2

tl;dr solution on a single(ish) line of code using vanilla javascript

var queryDict = {} location.search.substr(1).split("&").forEach(function(item) {     queryDict[item.split("=")[0]] = item.split("=")[1] }) 

For querystring ?a=1&b=2&c=3&d&eit returns:

> queryDict a: "1" b: "2" c: "3" d: undefined e: undefined 

multi-valued keys and encoded characters?

See the original answer at How can I get query string values in JavaScript?

"?a=1&b=2&c=3&d&e&a=5&a=t%20e%20x%20t&e=http%3A%2F%2Fw3schools.com%2Fmy%20test.asp%3Fname%3Dståle%26car%3Dsaab" > queryDict a: ["1", "5", "t e x t"] b: ["2"] c: ["3"] d: [undefined] e: [undefined, "http://w3schools.com/my test.asp?name=ståle&car=saab"]