What's the difference between using let and var in JavaScript?

When should you use let over var? And why? Let’s find out! In modern JavaScript, there are three ways to declare a variable and assign it a value: const, let, and var. When it comes to working with variables in JavaScript, my default choice is always const. It guarantees that the value cannot be reassigned, making it a safer option. However, when there is a need to redeclare a variable later on, I always use let....