JSFiddle - React, Tailwind, and code Playground

by MuLtDirectX

JavaScript

let map = function(array, callback) {
	let resultArray = []
  for (let i = 0; i < array.length; ++i){
  	resultArray.push(callback(array[i]))
  }
  return resultArray
}
console.log(map([2,3,4], (e) => {return e*2}))