Performing the operation: let x = “Alice” + 10; will result in:

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Performing the operation: let x = "Alice" + 10; will result in:

  • the program execution to abort due to an error.
  • the value NaN of Number type to be stored in the variable x .
  • the value 15 of Number type to be stored in the variable x .
  • the value "Alice10" of String type to be stored in the variable x .
Answers Explanation & Hints:

In JavaScript, when you use the + operator with a string and a number, the number is implicitly converted to a string, and the concatenation of the two values is performed.

In the code snippet let x = "Alice" + 10;, the string “Alice” is concatenated with the number 10. The result of this operation is the string “Alice10”, which is then stored in the variable x.

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