Arrays: Filling an array

You can initialize a new array with a set of values using this syntax, which first initializes an array of 12 elements, and fills each element with the number 0:

const b = Array(12).fill(0)

const b = Array() is another way to define an array, which is equivalent to using the array literal syntax const b = []

const b = Array()

//same as

const b = []

b is now an array of 12 items that all have the value 0.

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

Coming soon: Git Masterclass, JavaScript Masterclass and BOOTCAMP