JavaScript Simple Interview Question #shorts

Are you preparing for a JavaScript interview? Here’s a simple interview question to help you brush up on your skills.

Question:

What is the difference between let and var in JavaScript?

Answer:

The main difference between let and var in JavaScript is scoping. Variables declared with var are function-scoped, meaning they are only available within the function they are declared in. On the other hand, variables declared with let are block-scoped, meaning they are only available within the block they are declared in (e.g. if statement, for loop, etc).

Additionally, variables declared with var are hoisted to the top of their function or global scope, while variables declared with let are not hoisted.

It’s important to understand the differences between let and var as it affects the way variables are accessed and scoped in your JavaScript code.

Remember, preparation is key for any interview, so make sure to practice and understand common JavaScript concepts and questions before heading into your next interview!