Friday, 8 February, 2019 UTC
Summary
Basics
This methods appends one or more value to the last position of an array. This method mutates the array returning the new length of the array.
let newArray = [1, 2, 3, 4, 5].push(6)
// [1, 2, 3, 4, 5, 6]https://scotch.io/embed/gist/f856cd93aad2951ec4d8cbb83780862a
The
push method:- Takes a value or values as arguments.
- Adds the value(s) to the end of the array.
- Returns the new length of the array.
array.push(element)1 Parameter
element
This is the element to be added to the array
Returns the length of the array
The method will return the new length of the array. If the array is empty, it returns
0.const names = ['Johnny', 'Pete', 'Sammy']
console.log(names.push('Larry'));
// output: 4Common Uses and SnippetsThe .push() method mutates the old array.
Appending new values to the end of an array
https://scotch.io/embed/gist/e606571a20b9ff2f5ab32fb76b59b5fc
Adding object values to an array of objects
This is used in situations like adding todo items to a todo list.
https://scotch.io/embed/gist/1721d1efc46721131d750076ae1a2133