How to add a pseudo class in jQuery?

You cannot directly add pseudo-classes to elements using jQuery. Pseudo-classes are part of CSS and define special states of an element, like :hover, :focus, or :active. jQuery primarily manipulates the structure and content of HTML elements and interacts with CSS styles through class manipulation.

Here's how you can achieve the effect of applying a pseudo-class using jQuery:

• Add and remove classes based on events: You can add or remove classes to your elements using jQuery to trigger CSS rules that mimic the behavior of a pseudo-class. For example, you can add the class active when an element is clicked, which would then apply the corresponding styles defined in your CSS for .active.

  $('.element').click(function() {
    $(this).addClass('active');
  });
  
  $('.element').blur(function() {
    $(this).removeClass('active');
  });

• Use CSS classes that mimic the pseudo-class: Instead of trying to directly manipulate pseudo-classes, you can create CSS classes with names that represent the state you want to achieve, and then use jQuery to toggle these classes on and off.

  .element:hover {
    background-color: lightblue;
  }
  
  .element.hover-state {
    background-color: lightblue;
  }
  

  $('.element').hover(function() {
    $(this).addClass('hover-state');
  }, function() {
    $(this).removeClass('hover-state');
  });

Important: Directly manipulating CSS pseudo-elements using jQuery is not possible. To achieve the desired effects, you can use CSS classes to target specific elements and styles.