How to convert URL parameters to a JavaScript object?

Question

I have a string like this:

abc=foo&def=%5Basf%5D&xyz=5

How can I convert it into a JavaScript object like this?

{
          


        

Answer 1

Pretty easy using the URLSearchParams JavaScript Web API,

var paramsString = "q=forum&topic=api";

//returns an iterator object
var searchParams = new URLSearchParams(paramsString);

//Usage
for (let p of searchParams) {
  console.log(p);
}

//Get the query strings
console.log(searchParams.toString());

//You can also pass in objects

var paramsObject = {q:"forum",topic:"api"}

//returns an iterator object
var searchParams = new URLSearchParams(paramsObject);

//Usage
for (let p of searchParams) {
  console.log(p);
}

//Get the query strings
console.log(searchParams.toString());

Useful Links

• URLSearchParams - Web APIs | MDN
• Easy URL Manipulation with URLSearchParams | Web | Google Developers

NOTE: Not Supported in IE