In this tutorial, you will learn about the difference between let and var in JavaScript with the help of examples.

ES6 introduced the two new JavaScript keywords: let and const. These two keywords provided Block Scope in JavaScript: Variables declared inside a { } block cannot be accessed from …

Apr 18, 2009 · Variables declared by var keyword are scoped to the immediate function body (hence the function scope) while let variables are scoped to the immediate enclosing block …

Jan 9, 2025 · With the introduction of ES6 in 2015 two more keywords, let and const came into the picture. var and let are both used for variable declaration in javascript but the difference …

Nov 7, 2023 · Through this article, you will learn how to declare and mutate variables using var, let, and const, and you'll get a better understanding of the differences between them. I will …

Mar 19, 2025 · let declarations cannot be in the same scope as any other declaration, including let, const, class, function, var, and import declaration. A let declaration within a function's body …

Feb 16, 2024 · Understanding the differences between let, var, and const is fundamental for writing robust JavaScript code. While var has its use cases, let and const provide more …

Oct 2, 2024 · In this guide, we’ll explore the differences between var, let, and const and show you how to use each one effectively. Whether you're new to JavaScript or need a refresher, this …

var has "function scope", meaning variables declared within a function have their effective range limited to that function. However, it doesn't have block scope, so variables declared within a …

Jan 10, 2025 · The three ways to declare variables in JavaScript are var, let, and const. While var was the go-to in earlier versions, ES6 introduced let and const, offering more predictable scoping.