Parse query string parameters

getQuery.js

function getQuery(s) {
	var query = {}, i = s.indexOf('?');
	if (i != -1) {
		s.substr(i+1).replace(/\+/g, ' ').replace(/([^&;=]+)=?([^&;]*)/g, function (m, k, v) {
			query[decodeURIComponent(k)] = decodeURIComponent(v);
		});
	}
	return query;
}
//_GET = getQuery(location.href);

Thanks for posting this snippet, one thing I notice is that it doesn't handle a case where the query string looks like: ?a=1&b=2&a=3, as it overwrites a=1 with a=3 so I modified it slightly to accommodate.

Replaced

query[decodeURIComponent(k)] = decodeURIComponent(v);

With

if(query[decodeURIComponent(k)] === undefined){
    query[decodeURIComponent(k)] = [decodeURIComponent(v)];
} else {
    query[decodeURIComponent(k)].push(decodeURIComponent(v));
}

Thanks! Nice to know people can use this bits I post.

I know where you're coming from, there are often good cases for wanting to pass lists over a query string. I like to think of query-strings as simple key-value maps, so only 1 value per key.

PHP's $_GET and jQuery's $.param also allow an alternative bracket-like syntax to be used for array's, as in ?a[]=1&b=2&a[]=3. I could see supporting that, as it still allows the key-value relationship.

IMO, I like the functions simplicity and map relationship.

If you're looking for something more robust, I recommend @cowboy's:

• http://benalman.com/code/projects/jquery-bbq/examples/deparam/
• https://github.com/cowboy/jquery-bbq