Function arrayCount

test/test.js:6–14

(arr, key)

// helper method
var arrayCount = function(arr, key) {
	var count = 0;
	for (var i = 0; i < arr.length; i++) {
		if (arr[i].name === key) {
			count++;
		}
	}
	return count;
};

// helper method
var arrayValue = function(arr, key) {