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Remove a Class from an Element

To remove a class from an element, you use the remove() method of the classList property of the element.

When attaching a handler to a given event, you can pass { once: true } to the last parameter of the addEventListener method.

Here’s a simple method you can use to get the value of a query string with native JavaScript.

Use typeof to check if a value is classified as a string primitive.

To add a class to an element, you use the classList property of the element.

Check if the current browser is Internet Explorer (IE).

Let’s look at how to get all parent elements of a specific element.

Use arithmetic comparison to check if the given number is in the specified range.

To get the width and height of an element, you use the offsetWidth and offsetHeight properties of the element.