How to find particular class exists on a page using JQuery

Question

I want to write JQuery which will find whether Class="Mandatory" exists on the page and if any element is having this class then only perform certain action.

Thanks

Answer 1

Just check how many elements you hit, when you search for it with jQuery

if ($(".Mandatory").length > 0) {     // Do stuff with $(".Mandatory")     $(".Mandatory").each(function() {         // "this" points to current item in looping through all elements with         // class="Mandatory"         $(this).doSomejQueryWithElement();     });  } 

EDIT If you wanna do that check for your submit button click, just do that check after the click:

$("input[type='submit']").click(function() {     if ($(".Mandatory").length > 0) {         // Do some code here     } }); 

Answer 2

If you want to only do the action once, you could use:

if ($('.Mandatory').length > 0) {   //do your thing } 

Otherwise if you want to do it for each Mandatory element:

$('.Mandatory').each(function(){   //do your thing });