Diffrences between slice, splice, pop and split?

Question

What are the diffrences between slice, splice, pop and split? Because sometimes I am confused in challenges...
https://code.sololearn.com/Wq8LxiDcXFCh/?ref=app

Answer 1

https://medium.freecodecamp.org/lets-clear-up-the-confusion-around-the-slice-splice-split-methods-in-javascript-8ba3266c29ae

Answer 2

The link given by Atlas Hamington is a good one look at that one. It left out "pop" which in general removes the last element of an array and returns it.

var numbers = [1,2,3,4];
var lastdigit = numbers.pop();

The value of lastdigit is 4

Answer 3

سلام این برنامه چی هست

Answer 4

من انگلیسی متوجه نمیشم