Convert Query to JSON

QueryToJSON

// <refrence path="https://jsfiddle.net/dm1ufzz3/" />

function QueryStringToJSON(str) {
	var pairs = str.split('&');
	var result = {};
	pairs.forEach(function (pair) {
		pair = pair.split('=');
		var name = pair[0]
		var value = pair[1]
		if (name.length)
			if (result[name] !== undefined) {
				if (!result[name].push) {
					result[name] = [result[name]];
				}
				result[name].push(value || '');
			} else {
				result[name] = value || '';
			}
	});
	return result;
}

var string = 'var1=5&var2=stackoverflow&var3=blah';
var obj = new QueryStringToJSON(string);

console.log(obj) // {var1: "5", var2: "stackoverflow", var3: "blah"}

QueryToJSON-2

// <refrence path="http://jsfiddle.net/jAGN5/" />

var params = new getUrlVars('some=params&over=here');

console.log(params)

function getUrlVars(url) {
    var hash;
    var myJson = {};
    var hashes = url.slice(url.indexOf('?') + 1).split('&');
    for (var i = 0; i < hashes.length; i++) {
        hash = hashes[i].split('=');
        myJson[hash[0]] = hash[1];
    }
    return myJson;
}

QueryToJSON-3

function QueryStringToJSON() {            
    var pairs = location.search.slice(1).split('&');
    
    var result = {};
    pairs.forEach(function(pair) {
        pair = pair.split('=');
        result[pair[0]] = decodeURIComponent(pair[1] || '');
    });

    return JSON.parse(JSON.stringify(result));
}

var query_string = new QueryStringToJSON();