--- id: 56bbb991ad1ed5201cd392ce title: Manipulate Arrays With unshift() challengeType: 1 videoUrl: 'https://scrimba.com/c/ckNDESv' forumTopicId: 18239 dashedName: manipulate-arrays-with-unshift --- # --description-- Not only can you `shift` elements off of the beginning of an array, you can also `unshift` elements to the beginning of an array i.e. add elements in front of the array. `.unshift()` works exactly like `.push()`, but instead of adding the element at the end of the array, `unshift()` adds the element at the beginning of the array. Example: ```js var ourArray = ["Stimpson", "J", "cat"]; ourArray.shift(); ourArray.unshift("Happy"); ``` After the `shift`, `ourArray` would have the value `["J", "cat"]`. After the `unshift`, `ourArray` would have the value `["Happy", "J", "cat"]`. # --instructions-- Add `["Paul",35]` to the beginning of the `myArray` variable using `unshift()`. # --hints-- `myArray` should now have `[["Paul", 35], ["dog", 3]]`. ```js assert( (function (d) { if ( typeof d[0] === 'object' && d[0][0] == 'Paul' && d[0][1] === 35 && d[1][0] != undefined && d[1][0] == 'dog' && d[1][1] != undefined && d[1][1] == 3 ) { return true; } else { return false; } })(myArray) ); ``` # --seed-- ## --after-user-code-- ```js (function(y, z){return 'myArray = ' + JSON.stringify(y);})(myArray); ``` ## --seed-contents-- ```js // Setup var myArray = [["John", 23], ["dog", 3]]; myArray.shift(); // Only change code below this line ``` # --solutions-- ```js var myArray = [["John", 23], ["dog", 3]]; myArray.shift(); myArray.unshift(["Paul", 35]); ```