prac

by YuHan Chien

HTML

<button type='button' id='click_CB'>click me</button>

JavaScript

let go = function(goal,fail){
	let con = Math.random();
  console.log(con);
	if(con>0.5){
  	goal();
  }else{
  	fail();
  }
}

let success = function(){
	console.log('We did it !!!');
}

let failure = function(){
	console.log('We failed QQ');
}

let button1 = document.getElementById('click_CB');
button1.addEventListener("click", function (){go(success,failure)});