The method of operation of the class name

1. native operation class name js

dom.className="aa bb cc"

<script>
document.getElementById('test').className='aa bb cc'
</script>

 

2.jQuery action class name

. I add class: $ .addClass ( "a");

$("div").addClass(“a”);

.. Ii removal categories: $ removeClass ( "b");

$("div").removeClass(“b”);

.. Iii Analyzing categories: $ hasClass ( "c");

$("div").hasClass(“c”);

iv handover categories:.. $ toggleClass ( "d")

$("div").toggleClass(“d”);

 

 3.html5 action class name

add class i:. dom.classList.add ( "aaa")

ii remove categories:. dom.classList.remove ( "bbb")

Analyzing class iii:. dom.classList.contains ( "ccc")

iv handover categories:. dom.classList.toggle ( "ddd")