Javascript Top Methods

Front 1

Spread operator

Back 1

Expands array into all items

Front 2

For...of

Back 2

Iterates through a collection

Front 3

Includes

Back 3

Finds items in a string

Front 4

Some

Back 4

Checks if elements exist in an array and returns true

Front 5

Array.find

Back 5

Check for a value in an array

Front 6

Filter

Back 6

Gives you a new array with only the values that satisfied the condition

Front 7

Arrow functions this

Back 7

Change this to only be the true context of the function

Front 8

Array.prototype.push.apply

Back 8

Merge two arrays

Front 9

Map

Back 9

Loops through items in array doing function to each item