Get class name using jQuery

Question

I want to get the class name using jQuery  And if it has an id    lt div class  myclass  gt  lt  div gt

User · Answer

Direct way myid className   x000D   x000D  console log  myid className   x000D   lt div id  myid  class  myclass  gt  lt  div gt  x000D   x000D   x000D

User · Answer

If you re going to use the split function to extract the class names  then you re going to have to compensate for potential formatting variations that could produce unexpected results   For example     myclass1  myclass2   split      join        produces    myclass1  myclass2     I think you re better off using a regular expression to match on set of allowable characters for class names  For example     myclass1  myclass2    match    d w-    g     produces    myclass1    myclass2     The regular expression is probably not complete  but hopefully you understand my point   This approach mitigates the possibility of poor formatting

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This is to get the second class into multiple classes using into a element  var class name       videobuttonChange   attr  class   split      1

User · Answer

if we have single or we want first div element we can use      div   0  className otherwise we need an id of that element

User · Answer

It is better to use  hasClass   when you want to check if an element has a particular class  This is because when an element has multiple class it is not trivial to check   Example    lt div id  test  class  main divhover  gt  lt  div gt    Where       test   attr  class              returns  main divhover     With  hasClass   we can test if the div has the class divhover       test   hasClass  divhover       returns true     test   hasClass  main           returns true

User · Answer

you can simply use   var className       id   attr  class

User · Answer

lt div id  elem  class  className  gt  lt  div gt    With Javascript   document getElementById  elem   className    With jQuery      elem   attr  class      OR      elem   get 0  className

User · Answer

use like this -      myclass   css  color   red      if you ve used this class more than once then use each operator      myclass   each function  index  value      do you code

User · Answer

If we have a code    lt div id  myDiv  class  myClass myClass2  gt  lt  div gt     to take class name by using jQuery we could define and use a simple plugin method     fn class   function      return Array prototype slice call    this  0  classList        or      fn class   function       return   this  prop  class          The use of the method will be       myDiv   class      We have to notice that it will return a list of classes unlike of native method element className which returns only first class of the attached classes  Because often the element has more than one class attached to it  I recommend you not to use this native method but element classlist or the method described above    The first variant of it will return a list of classes as an array  the second as a string - class names separated by spaces       myClass  myClass2      myClass myClass2    Another important notice is that both methods as well as jQuery method     div   prop  class      return only class list of the first element caught by the jQuery object if we use a more common selector which points many other elements  In such a case we have to mark the element  we want to get his classes  by using some index  e g      div eq 2    prop  class      It depends also what you need to do with these classes  If you want just to check for a class into the class list of the element with this id you should just use method  hasClass    if     myDiv   hasClass  myClass           do something     as mentioned in the comments above  But if you could need to take all classes as a selector  then use this code     fn classes   function       var o     this      return o prop  class         concat  o prop  class   split        join                  var mySelector       myDiv   classes      The result will be       myClass myClass2   and you could get it to create dynamically a specific rewriting css rule for example   Regards

User · Answer

Be Careful   Perhaps   you have a class and a subclass        lt div id  id  class  myclass mysubclass   gt dfdfdfsdfds lt  div gt    If you use  previous solutions   you will have     myclass mysubclass   So if you want to have the class selector  do the following     var className           id   attr  class   split      join        and you will have    myclass mysubclass   Now if you want to select all elements that have the same class such as div above        var brothers           id   attr  class   split      join         that means  var brothers     myclass mysubclass     Update 2018  OR can be implemented with vanilla javascript in 2 lines      const   classList     document querySelector   id      document querySelectorAll     Array from classList  join

User · Answer

If your  lt div gt  has an id     lt div id  test  class  my-custom-class  gt  lt  div gt                                                                               you can try    var yourClass       test   prop  class        If your  lt div gt  has only a class  you can try    var yourClass       my-custom-class   prop  class

User · Answer

If you do not know the class name BUT you know the ID you can try this    lt div id  currentST  class  myclass  gt  lt  div gt    Then Call it using    alert     currentST   attr  class

User · Answer

To complete Whitestock answer  which is the best I found  I did    className     this  attr  class   match    d w-    g   className         className join          So for   myclass1  myclass2    the result will be   myclass1  myclass2

User · Answer

This works too   const  el       myclass    const className    el 0  className

User · Answer

If you want to get classes of div and then want to check if any class exists then simple use   if       div-id    hasClass   classname               do something        e g   if      body   hasClass   home                menu-item-4   addClass  active

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Best way to get class name in javascript or jquery  attr   attribute function is used to get and set attribute        Get Class    jQuery  your selector   attr  class        Return class        Check class exist or not   The hasClass   method checks if any of the selected elements have a specified class name    if jQuery  selector   hasClass  abc-class                Yes Exist      else             NOt exists              Set Class   jQuery  your selector   attr  class   myclass        It will add class to your selector        Get Class on Click of button using jQuery   jQuery document  on  click   button  function         var myclass   jQuery   selector   attr  class               Add class if selector have no any class using jQuery   if       div-id    hasClass   classname                   Add your code              Get the second class into multiple classes using into a element   Change array position in place of  1  to get particular class   var mysecondclass       mydiv   attr  class   split      1

User · Answer

You can get class Name by two ways     var className       myclass   attr  class      OR  var className       myclass   prop  class

User · Answer

After getting the element as jQuery object via other means than its class  then  var className       sidebar div eq 14    attr  class      should do the trick  For the ID use  attr  id     If you are inside an event handler or other jQuery method  where the element is the pure DOM node without wrapper  you can use   this className    for classes  and this id    for IDs   Both are standard DOM methods and well supported in all browsers

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Try it  HTML   lt div class  class area-1  gt      area 1  lt  div gt    lt div class  class area-2  gt      area 2  lt  div gt    lt div class  class area-3  gt      area 3  lt  div gt    jQuery   lt script src  https   code jquery com jquery-1 11 3 js  gt  lt  script gt   lt script type  application javascript  gt         div   click function            alert   this  attr  class              lt  script gt

[javascript] Get class name using jQuery

Direct way

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