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79 lines
1.5 KiB
Markdown
79 lines
1.5 KiB
Markdown
---
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id: 56bbb991ad1ed5201cd392cb
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title: Manipulate Arrays With push Method
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challengeType: 1
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videoUrl: 'https://scrimba.com/c/cnqmVtJ'
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forumTopicId: 18237
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dashedName: manipulate-arrays-with-push
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---
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# --description--
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An easy way to append data to the end of an array is via the `push()` method.
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The `push()` method takes one or more <dfn>arguments</dfn> and appends them to the end of the array, in the order in which they appear. It returns the new length of the array.
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Examples:
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```js
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const arr1 = [1, 2, 3];
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arr1.push(4, 5);
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const arr2 = ["Stimpson", "J", "cat"];
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arr2.push(["happy", "joy"]);
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```
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`arr1` now has the value `[1, 2, 3, 4, 5]` and `arr2` has the value `["Stimpson", "J", "cat", ["happy", "joy"]]`.
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# --instructions--
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Push `["dog", 3]` onto the end of the `myArray` variable.
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# --hints--
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`myArray` should now equal `[["John", 23], ["cat", 2], ["dog", 3]]`.
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```js
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assert(
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(function (d) {
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if (
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d[2] != undefined &&
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d[0][0] == 'John' &&
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d[0][1] === 23 &&
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d[2][0] == 'dog' &&
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d[2][1] === 3 &&
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d[2].length == 2
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) {
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return true;
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} else {
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return false;
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}
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})(myArray)
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);
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```
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# --seed--
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## --after-user-code--
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```js
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(function(z){return 'myArray = ' + JSON.stringify(z);})(myArray);
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```
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## --seed-contents--
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```js
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// Setup
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const myArray = [["John", 23], ["cat", 2]];
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// Only change code below this line
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```
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# --solutions--
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```js
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const myArray = [["John", 23], ["cat", 2]];
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myArray.push(["dog",3]);
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```
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