jquery get all elements by class code example

Example 1: get all classes of element jquery

var classList = $('#divId').attr('class').split(/\s+/);
$.each(classList, function(index, item) {
    if (item === 'someClass') {
        //do something
    }
});

Example 2: jquery get all classes of a div

var classes = $('#test').attr('class').split(' ');

alert(classes[0]); // first class
alert(classes[1]); // second class
alert(classes[2]); // third class

Example 3: jquery find tag and class

$(".txtClass")                  =>  getElementsByClassName()

$("#childDiv2 .txtClass")       =>  getElementById(),
                                    then getElementsByClassName()

$("#childDiv2 > .txtClass")     =>  getElementById(),
                                    then iterate over children and check class

$("input.txtClass")             =>  getElementsByTagName(),
                                    then iterate over results and check class

$("#childDiv2 input.txtClass")  =>  getElementById(),
                                    then getElementsByTagName(),
                                    then iterate over results and check class

Example 4: how to find a name of class from page in jquery

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

Example 5: jquery select element with class

$('.classid')

Example 6: how to find a name of class from page in jquery

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