JSFiddle - React, Tailwind, and code Playground

HTML

<p>实现函数函数multi(2)(3)(4)=24</p>
<p id=result></p>

JavaScript

function multi(n){
  var fn = function(x) {
    return multi(n * x);
  };
  
  fn.toString = function() {
    return n;
  };
  
  return fn;
}

var result = multi(2);

var elt = document.getElementById("result");
elt.textContent = result;