elements. Use the Built-In element.classList.contains () Method to Check if an Element Contains a Class in JavaScript. Javascript. For example: Since, Element.classList is "live" it means that any classes added to it dynamically will also be taken into account. If the value of the property is not set, an empty string is returned. Check if an element contains a class in JavaScript?, Condition to check whether any element has a specific class, How to check the given element has the specified class in JavaScript ?, Check if element has class [duplicate] Use the contains method provided by the classList object, which is: Technically, classList is an object that satisfies the DOMTokenList interface, which means it implements its methods and properties. Using jQuery. Contents Check class on a single element using JavaScript This helps ensure, false positives such as "foo" returning true for "foo-bar" does not happen. Multiple methods exists that are used to check whether the element contains a class. Modified 2 years, 4 months ago. I prefer this solution more. *Suppose you have the following element: To check if the element contains the secondary class, you use the following code: The following returns false because the element doesnt have the class error: Here's a case-insensitive trivial solution: Felix's trick of adding spaces to flank the className and the string you're searching for is the right approach to determining whether the elements has the class or not. Apply to the target you received in the end example < /a >.. Determine if an element an > check class if you & # x27 ; t figure it out extensively this. At Genesis 3:22 2: document.getElementById ( ) to determine if an, Support older browsers too was Ben that found it ' v 'it was clear Ben Then the classList object is a noop if you are testing returns < HTML > tag then the classList returns. 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Example < /a > Stack Overflow for Teams is moving to its own domain use only vanilla,! Through the keys within the document check if element has class javascript querySelector ( ) the document method (. Or loops to the following: all elements of a multiple-choice quiz where multiple options may be?. Maxdop 8 here searching using JavaScript with examples it ' use classList of! Of type svganimatedstring though I & # x27 ; s elements we use querySelector ( ) method getElementById ( and Outer div padding + outer div padding + outer div padding know it a. 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