JSFiddle - React, Tailwind, and code Playground

by TheDiamondDoge

JavaScript

function sum(num) {
	let result = 0;
  
  function add(x) {
  	if (x !== undefined) {
  		result += x;
      return add;
    } else {
    	return result;
    }
	}
  
  return add(num);
}


console.log(sum(1)(2)(3)(4)());