Question

What does javascript use instead of == and !=?

(a) It uses bitwise checking

(b) It uses === and !== instead

(c) It uses equals() and notequals() instead

(d) It uses equalto()

The question was posed to me during an interview for a job.

This intriguing question comes from JavaScript Subsets topic in chapter Classes and Modules in JavaScript of JavaScript

Answer 1

Right answer is (b) It uses === and !== instead

Best explanation: The subset does not include the comma operator, the bitwise operators, or the ++ and — operators. It also disallows == and != because of the type conversion they perform, requiring use of === and !== instead.