In this guide, we’ll learn about variables, a basic building block in JavaScript programming. A quick look at variables! Practice creating variables and assigning different values to get the hang of it.
Understanding Variables in JavaScript
What Are Variables?
Variables are like containers that store data. Think of them as labeled boxes that hold information we can use and change.
In JavaScript, you create a variable using the let, var, or const keyword:
// Declaring variables
let name = "Alice"; // 'let' lets you reassign the value
var age = 25; // 'var' is an older way to declare variables
const pi = 3.14; // 'const' means this value cannot change
Choose let for values that might change, and const for values that stay the same.
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