On the other hand, undefined is a variable that has no assigned value. JavaScript Interview Questions: Beginners Levelġ.What is the difference between null and undefined?Ī null is an object and ideally means nothing. Keeping this as one of the reasons, we designed this article outlining the top JavaScript Interview Questions for you to consider when preparing for the interview. With time, the popularity of the language will only increase and so will the demand for JavaScript developers. Companies such as Facebook and Google use JavaScript to develop complex web applications with ease.
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