Q. What is the output of this expression?

Code: 
console.log('5' + 1);
  • (A) 6
  • (B) '51'
  • (C) undefined
  • (D) NaN
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✅ Correct Answer: (B) '51'
Explanation: String + number results in string concatenation in JavaScript.

Published by Chandani ⭐ 10.97K Points at 14-Jun-2025 07:40 am in JavaScript

Explanation by: Chandani
String + number results in string concatenation in JavaScript.

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