• A variable is like a container for storing data.
• Variables are used to update, change, and manipulate data within our webpages.
• Data types that can be stored in variables include:
  • Strings (e.g., let name = "Mario";)
  • Numbers (e.g., let students = 30;)
  • HTML Elements (e.g., let divTag = document.querySelector("div");)

// To save an HTML tag in a variable:
let paragraph = document.querySelector(".container");

// To select an element with a specific class:
let image = document.querySelector(".firstImg");

• To debug and check the values stored in your variables, use the console log.

// To log a value to the console:
console.log(yourVariable);

• The console is a development tool that is not visible to end-users.

Happy Coding!