jQuery addClass example

Change class name on click in jQuery

by mitiya

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")

var mY 
var mX


// handle click and add class
button.on("click", function(){
  banner.addClass("alt")
})

var t = 0
var trig = 10

banner.mousemove(function(e){
	

	//console.info(e.pageY + "  " + e.pageX)
  
  t++
 // console.info('t=' + t)
  if (t == trig) {
  	console.info((e.pageY - mY) + "  " + (e.pageX - mX))
    t = 0
  }
  
  
  mY = e.pageY
  mX = e.pageX
})