JSFiddle - React, Tailwind, and code Playground

by kixi

HTML

<div>kixi.com.cn</div>
<div>这里是"清晰网"的实例练习</div>

JavaScript

function callerDemo() {
    if (callerDemo.caller) {
         var a= callerDemo.caller.toString();
         alert(a);         
     } else {
         alert("this is a top function");
     }
}

function handleCaller() {
     callerDemo();
}

handleCaller();