JSFiddle - React, Tailwind, and code Playground

by urunao

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<link rel="stylesheet" href="https://cdn.rawgit.com/twbs/bootstrap/v4-dev/dist/css/bootstrap-reboot.css">
<div id="test">
  オペランド
</div>

CSS

#test {
  background:black;
  color:white;
  height:100px;
  width:100px;
  margin:10px;
  border:5px solid red;
}

JavaScript

var fibo = () => {
	var memo= [0,1];
  var fi = n => {
  	var res= memo[n];
    if (typeof res !== "number"){
    res=fi(n-1)+fi(n-2);
    memo[n]=res;
    }
    return res;
  };
  return fi;
};

console.log(fibo());