Output Q1: console.log(a); → undefined

Question

What will be the output?

console.log(a);

var a = 10;

Answer

Output: undefined

Variables declared with var are hoisted to the top of their scope. Only the declaration is hoisted, not the assignment.

Key Points

This question tests your understanding of JavaScript internals and execution behavior. Interviewers often ask similar variations to evaluate debugging and reasoning skills.