Q. What is default value of any variable in Javascript?

Code: 
var a;
document.write(a);
  • (A) 0
  • (B) undefined
  • (C) error
  • (D) NaN
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✅ Correct Answer: (B) undefined

Published by Ram Sharma ⭐ 193.88K Points at 18-Jul-2022 09:53 pm in JavaScript

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