Snippet to parse a query sting. Returns the string base and key/value object

parseQueryString.js

	/**
	 * Used to transform a query string of params and
	 * values into a useful javascript object.
	 * 
	 * @param  {String} str 
	 * @return {Object}
	 */
	function parseQueryString(str) {
		
		var

		baseName, 
		queryStringIndex, 
		queryString, 
		paramsArray, 
		numParams, 
		paramValArray,
		result = {};
		
		// get the char index of the '?'
		queryStringIndex = str.indexOf('?');

		// if there is no query string
		if(queryStringIndex < 0) {
			
			return {
				name: str,
				params: {} 
			};  
		}
		
		// extract the base string
		baseName = str.slice(0, queryStringIndex);
		
		// trim everything off before the '?'
		queryString = str.slice(queryStringIndex + 1);
		
		// divide each set into an array
		paramsArray = queryString.split('&');
		
		// get number of params
		numParams = paramsArray.length;
		
		// loop over each param
		for(var i = 0; i < numParams; i++) {
		   
			// split into two part param and value array
			paramValArray = paramsArray[i].split('=');
			
			// set the param and value on the result object
			result[paramValArray[0]] = paramValArray[1];
		}
		
		// return the final object
		return {
			name: baseName,
			params: result
		};
	}