Arrays: Adding an item to an existing array

You can add items in different ways depending on where you need to add them, and also depending if you want to mutate the original array, or you want to create a new one.

The simplest way is to use the push() method:

const fruits = ['banana', 'pear', 'apple']
fruits.push('mango')

push() appends the item to the end of the array.

Lessons in this unit:

0:	Introduction
1:	Number of items in an array
2:	Create a new array from an existing array
3:	▶︎ Adding an item to an existing array
4:	Adding at the beginning of an array
5:	Adding multiple items to the array
6:	Removing an item from an array
7:	Modifying an existing array without mutating it
8:	Arrays of arrays
9:	Filling an array
10:	Array destructuring
11:	Check if an array contains a specific value

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