Array – Exercise

by Colin Cheevers

JavaScript

/**
 * Array – Exercise
 * 
 * Use only array instance methods!
 
 * 1. Filter arr1 to only contain only even values
 * 2. Reverse order the values of in arr1
 * 3. Combine both arr1 and arr2 together, then loop through each value and
 *    log each value to the console
 *
 * Bonus: Using Array.sort and a custom sorter function, sort arr2 by 
 *        length of value, descending
 
 **/

var arr1 = [1,2,3,4,5,6,7,8,9,10];
var arr2 = ['a','bb','ccc','dddd'];

// 1
for (var i = 0; i < arr1.length; i++) {
    	var evenArray = arr1.filter(function(n) {
			return n % 2 === 0;
	});
}

// 2
arr1.reverse(); 

//3
var concatArray = arr1.concat(arr2);
for (var i=0; i < concatArray.length; i++) {
    console.log(concatArray[i]);  
}