General

Question 1

.pop method

Answer 1

Array method

Takes the last element of the array the method is called on and returns it

Const array = [1,2,3]

Return Array.pop()

3

If called on an empty array, returns undefined

This method mutates the array by removing the last element

Question 2

Set data structure

Answer 2

Iterable object where no 2 values are the same

Question 3

Difference between do while and while loop

Answer 3

Do while
Code block is executed then the condition is checked

While
Condition is checked before the code block is executed

Question 4

Do while loop

Answer 4

Do { 
Let row = []
Grid.push(row) 
}
While (gird.length < 3)