let

Recommended method to declare variables/objects.

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Used to declare variables in a block scope. Out of curly braces, out of mind. Variables declared with let

• can be changed later on
• cannot be re-declared Just constructing the variable gives it undefined value

let pizza = "Pizza"
pizza = "Much Bigger Pizza" // Allowed
let pizza = "Burger" // Not allowed, Syntax Error
 
let emptyLet; 
console.log(emptyLet); // return 'undefined'