Variables and Data Types
Explore how to declare variables using var, let, and const keywords and understand JavaScript data types, coercion, and conversion. This lesson helps you master foundational concepts crucial for managing data and state in React applications.
We'll cover the following...
We'll cover the following...
Understanding how to declare and work with variables is a fundamental concept in any programming language, including JavaScript. Variables allow us to store and manipulate data, which forms the core of most applications.
Variable declarations
JavaScript provides three ways to declare variables.
The var keyword
The var keyword, used in older JavaScript versions, declares variables with function scope, meaning they are accessible throughout the entire function in which they are ...