Create query parameters in javascript

Question

Is there any way to create the query parameters for doing a GET request in javascript. Just like in python you have urllib.urlencode() which takes in a dict (or list of two tuples) and creates a string like 'var1=value1&var2=value2'

Answer 1

If you are using Prototype there is Form.serialize

If you are using jQuery there is Ajax/serialize

I do not know of any independent functions to accomplish this, though, but a google search for it turned up some promising options if you aren't currently using a library. If you're not, though, you really should because they are heaven.

Answer 2

This thread points to some code for escaping URLs in php. There's escape() and unescape() which will do most of the work, but the you need add a couple extra things.

function urlencode(str) {
str = escape(str);
str = str.replace('+', '%2B');
str = str.replace('%20', '+');
str = str.replace('*', '%2A');
str = str.replace('/', '%2F');
str = str.replace('@', '%40');
return str;
}

function urldecode(str) {
str = str.replace('+', ' ');
str = unescape(str);
return str;
}

Answer 3

Here you go:

// Usage:
//   var data = { 'first name': 'George', 'last name': 'Jetson', 'age': 110 };
//   var querystring = EncodeQueryData(data);
// 
function EncodeQueryData(data)
{
   var ret = [];
   for (var d in data)
      ret.push(encodeURIComponent(d) + "=" + encodeURIComponent(data[d]));
   return ret.join("&");
}