Data Storage Development Tutorials, Guides & Insights

JavaScript provides several primitive data types to store basic values. These data types are immutable, meaning their values cannot be changed directly. Understanding these types is fundamental for working with data in JavaScript.

Primitive data types represent single values (as opposed to complex objects). JavaScript has the following primitive types:

     {
       let x = 10;
       console.log(x); // 10
     }
     console.log(x); // Error: x is not defined

• Variables are accessible within the entire function they are declared in.
• Example:

node app.js

Expected Output: