Plain Javascript Equivalent of jQuery.param()

Question

jQuery.param() takes an array of key-value pairs, and turns it into a string you can use as a query string in HTML requests. For example,

a = {
      userid:1,
         


        

Answer 1

You can also do that with pure JavaScript, but you have to write more lines of code. Try this:

HTML code for testing:

JavaScript to be fired onload:

a = {
      userid:1,
      gender: "male",
    }

url = Object.keys(a).map(function(k) {
    return encodeURIComponent(k) + '=' + encodeURIComponent(a[k])
}).join('&')

document.getElementById("test").innerHTML=url

The output is this:

userid=1&gender=male

You can try this on JSFIDDLE.NET, it works, here's the link: http://jsfiddle.net/ert93wbp/