How can I avoid the temporal dead zone in JavaScript?

What is the temporal dead zone in JavaScript?

The temporal dead zone (TDZ) refers to the period from the start of a block until the variable is declared. During this time, accessing the variable will result in a ReferenceError.

How can I avoid the temporal dead zone?

To avoid the TDZ, always declare your variables at the top of their scope before using them. This ensures they are initialized before any access.

Can you give me an example of the temporal dead zone?

Sure! Here's an example:

console.log(x); // ReferenceError: Cannot access 'x' before initialization
let x = 5;

What are the best practices for variable declaration in JavaScript?

Best practices include using 'let' and 'const' for block-scoped variables, declaring variables at the top of their scope, and avoiding hoisting issues.