Behavioral

Can you explain the distinction between null and undefined in JavaScript, and when each should be used?

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Behavioral
  • Can you explain the distinction between null and undefined in JavaScript, and when each should be used?
  • How do null and undefined differ, and in what scenarios is each appropriate to use?
  • What's the difference between null and undefined, and how do you decide which one to use in specific cases?
  • Could you describe the differences between null and undefined, and provide guidance on their usage?
  • How would you differentiate null from undefined, and what are the best practices for using them?
  • What distinguishes null from undefined, and in what situations would you use each?
  • Can you outline the key differences between null and undefined, and advise on when to use each?
  • What separates null from undefined, and how should one determine which to use in their code?
  • How do you contrast null and undefined, and what criteria do you use to decide which to apply in various coding scenarios?
  • What is the difference between null and undefined? Which one should I use?

Interview question asked to Frontend Engineers interviewing at Wooga, Canon, Playrix and others: Can you explain the distinction between null and undefined in JavaScript, and when each should be used?.