jQuery toggleClass example

Toggle class name on click in jQuery

by Dedi Wibisono

HTML

<input type="text" id="email">
<button id="a">click</button>

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

$("#a").click(function(){
	//alert(1)
  var emailVal= $("#email").val();
  const re = /^[A-Za-z]+$/;
  var res = re.test(emailVal);
  alert(res)
})