React js Check if an Element contains a class
React Js Check If An Element Contains A Class: In React.js, you can use the classList property to check if an element contains a specific class. Access the element's classList and use the contains method with the desired class name. This returns a boolean, indicating whether the class is present in the element's class list.
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How can you check if an element contains a class using ReactJS?
The provided code snippet demonstrates how to use React.js to check if an HTML element contains a specific class. It starts by importing the useRef hook from React. Inside the App component, a reference (myElementRef) is created using useRef and assigned to a div element with the class "my-class."
When the "Check Class" button is clicked, the checkClass function is called. This function checks if the referenced element's class list contains the class "my-class." If it does, an alert is shown indicating the presence of the class; otherwise, another alert indicates its absence.
React js Check if an Element contains a class
