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- /** CREATE ARRAY **/
- function makeList(item1, item2, item3) {
- return [item1, item2, item3];
- }
- /** ADD TO ARRAY **/
- function addToList(list, item) {
- list.push(item)
- return list
- }
- /** ACCESS ARRAY **/
- function accessFirstItem(array) {
- return array[0];
- }
- function accessThirdItem(array) {
- return array[2];
- }
- /** FIND LENGTH OF ARRAY **/
- function findLength(array) {
- return array.length;
- }
- /** ACCESS LAST ITEM OF ARRAY **/
- function accessLastItem(array) {
- return array[array.length-1];
- }
- /** COPY ARRAY **/
- function firstFourItems(array) {
- return array.slice(0, 4);
- }
- function lastThreeItems(array) {
- return array.slice(-3);
- }
- /** COPIES ALL BUT LAST ITEM **/
- function minusLastItem(array) {
- return array.slice(0, (array.length-1));
- }
- function copyFirstHalf(array) {
- return array.slice(0, (array.length/2));
- }
- /** SQARES **/
- function squares(array) {
- var result = array.map(function(num) {
- return num**2;
- });
- return result;
- }
- /** Filter **/
- function squares(array) {
- var result = array.map(function(num) {
- return num**2;
- });
- return result;
- }
- /** SORT **/
- function greatestToLeast(array) {
- return array.sort(function(a,b) {
- return b-a;
- });
- }
- /** FILTER **/
- function shortWords(array) {
- return array.filter(function(word) {
- return word.length < 5;
- });
- }
- /** FIND **/
- function divisibleBy5(array) {
- return array.find(function(num) {
- return num % 5 === 0;
- });
- }
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