Binary Search try

Change class name on click in jQuery

by Ajay Dubey

HTML

<div id="banner-message">
  <p>Hello World</p>
  <button>Change color</button>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

// find elements
var banner = $("#banner-message")
var button = $("button")

// handle click and add class
button.on("click", function(){
  binary([1,2,3,4,5, 6], 2 );
})

// document.querySelector('#banner-message').textContent = 'Ajay'

function binary(arr, x) {
	let p = 0;
	let r = arr.length;
   while( p <= r) {
  	 let q = Math.floor(p+r/2);
     document.querySelector('#banner-message').textContent = '3';
   }
}
 binary([1,2,3,4,5, 6], 2 );