Tell us what’s happening:
Your code so far
const sum = (function() {
"use strict";
return function sum(...w) {
return w.reduce((a, b) => a + b, 0);
};
})();
console.log(sum(1, 2, 3)); // 6
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36
.