/*
Write a function called "isEven".

Given an array of numbers, "isEven" returns a new array
that contains only the even numbers of the input array.

For example...

var output = isEven([1, 4, 5, 6, 10, 13]);
console.log(output); // --> [4, 6, 10]
*/

// Starter code

function isEven(num) {
    var output = [];
    for (var i = 0; i <= array.length; i++) {
		if (array[i] % 2 === 0) {
			output.push(array[i]);
        }
    }
	return output;
}