Add then remove class after delay but without page refresh

Question

I am adding a class

.error

on click and now after time interval of 2 seconds I want to remove this class, but without page reload/refresh.I used

delay()

in jQuery as:

$('#username').addClass('error').delay(2000).removeClass('error');

but it's not working.

Then I tried

setTimeout()

.

It's working, but reloading page. I want something that would add, and then remove, class after specific time but do not refresh/reload the page.

Please help, and thank you in advance.

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Answer 1

Using jquery and setTimeout function:

var $elm = $("#username").addClass("error");
setTimeout(function() {
  $elm.removeClass("error");
}, 2000);

.error{
  color:red;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="username">USER NAME</div>

Add then remove class after delay but without page refresh

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