JSFiddle - React, Tailwind, and code Playground

by Jessie Lau

JavaScript

function each(arr1,arr2, action, action2){
    for(var i = 0; i < arr1.length; i++){
        arr2[i] = action2(action(arr1[i]),action(arr2[i])); 
    }
}
var x = [1,2];
var y = [5,6];
each(x,y, function(a){return a*2; }, function(a,b){return a+b;});
console.log(y);