Posted in: Using jQuery Core > Frequently Asked Questions How do I test whether an element has a particular class?

Keep in mind navbar is just a variable I created.

It returns true if the specified class name is present, else it returns false. It returns TRUE if the specified class is present in any of the selected elements otherwise it returns FALSE.

$("li.fusion").addClass("active"); works fine, but $("li").hasClass("fusion").addClass("active") doesn't work. Bootstrap .affix - jQuery hasClass not working. After you find the existence of the class name, you can add another class using the I hope you like this tutorial on jQuery hasClass() method. You're tyring to use jQuery methods on normal dom objects. Apparently this way my variable myElements is a Nodelist, not an array, so I declare another variable; myElements_array, which contains the same elements as myElements and is an array (also tested and it works).Then I try to check which of the elements from myElements_array has the 'current-menu-item' class, but it doesn't work and the google chrome console says there's an error: 'Uncaught TypeError: myElements_array[j].hasClass is not a function'. Syntax $(selector).hasClass(className) className - The class name to search for. This can be used to check for multiple classes. .hasClass() (added in version 1.2) handles this common use case:

So, I store all the li items in a variable, myElements. Examples of jQuery hasClass() Given below are the examples: Example #1. You will get ‘false’ if the class is not present in the element.When you have to check the existence of the class name in the element, you have to use this method. $(selector).hasClass(className); selector refers to the selected element to be checked. It returns a ‘true’ value when it finds the specified class is present. Use this instead:

It returns a ‘true’ value when it finds the specified class is present. The jQuery hasClass() method checks whether the specified class name exist in the selected elements. In the end, I want to replace "fusion" with The example shows that the specified class is present in the selected element.

The jQuery hasClass() method checks whether the specified class name exist in the selected elements. DOM does not have hasClass.You can either store the jQuery version or change it to jQueryWhen you access a jQuery object as if it's an array, it returns the raw DOM element object, not a jQuery object.

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