JSFiddle - React, Tailwind, and code Playground
JavaScript
function forEach(array, action){
for (var i = 0; i < array.length; i++){
action(array[i]);
}
}
function print(arg){
console.log(arg);
}
function sum(numbers){
var total = 0;
forEach(numbers, function (number){
total += number;
});
return total;
}
console.log(sum([1,10,100]));