What are the best practices for variable declaration in programming?

What are the best practices for variable declaration in programming?

Some best practices include using meaningful names, declaring variables at the top of the scope, and using const/let instead of var.

Why is it important to use meaningful names for variables?

Meaningful names improve code readability and maintainability, making it easier for others (and yourself) to understand the code.

Can you explain the difference between var, let, and const?

Sure! 'var' is function-scoped, 'let' is block-scoped and allows reassignment, while 'const' is also block-scoped but cannot be reassigned.

When should I use const instead of let?

Use 'const' when you want to declare a variable that should not be reassigned, ensuring its value remains constant throughout its scope.