JavaScript Const

JavaScript Const

H1: JavaScript Const

  • H2: Introduction to JavaScript Const
  • H2: Declaring Constants with Const
  • H2: Const vs. Let and Var
    • H3: Immutability Differences
    • H3: Scope Differences
  • H2: Const with Objects and Arrays
    • H3: Mutating Object and Array Contents
    • H3: Object.freeze()
  • H2: Best Practices with Const
  • H2: Examples and Practice Questions

Introductory Paragraphs:

Welcome to our JavaScript Const tutorial! The ‘const’ keyword, also introduced in ECMAScript 6 (ES6), allows you to declare variables that cannot be reassigned after their initial value has been set. This helps create more predictable and maintainable code by preventing unintentional changes to your variables.

In this tutorial, we’ll cover the basics of declaring constants with ‘const’, compare ‘const’ to ‘let’ and ‘var’, and discuss best practices for using ‘const’ in your code. We’ll also delve into the nuances of using ‘const’ with objects and arrays. By the end of this tutorial, you’ll have a comprehensive understanding of the ‘const’ keyword and its benefits in JavaScript.