JSFiddle - React, Tailwind, and code Playground

by JinHan Heo

JavaScript

var arr = [1, 2, 3, 4]

// slice - original immutable array
console.log('slice          ', arr.slice(0, 2))  // [1, 2]
console.log('immutable array', arr)              // [1, 2, 3, 4]

// splice - original mutable array
console.log('splice         ', arr.splice(0, 2)) // [1, 2]
console.log('mutable array  ', arr)              // [3, 4]