jQuery class attribute value manipulation

The previous chapter introduced the content:

##$().attr('class', value);

$(). attr('class');

$().removeAttr('class'); //Delete the attributes of class

This section adds the following content:

$().addClass(value); //Add an information value to the class attribute

$().removeClass(value); //Delete an information value in the class attribute

$().toggleClass(value); //Toggle effect, delete it if it exists, add it if it doesn’t

        
  
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