JSFiddle - React, Tailwind, and code Playground
by YuHan Chien
HTML
<button type='button' id='click_CB'>click me</button>
JavaScript
let go = function(con,doWhat){
doWhat(con);
}
let doit = function(con){
if(con>0.5){
console.log('We did it !!!');
}else{
console.log('We failed QQ');
}
}
let button1 = document.getElementById('click_CB');
button1.addEventListener("click", function (){
let num = Math.random();
go(num,doit)
});