JavaScript · Lesson 2 · 10 min

Variables — Storing Information

Use let and const to save text and numbers in named boxes.

You will learn

Create variables with let and const
Store strings and numbers
Print variables with console.log

A variable is like a labeled box that holds a value. You can look inside the box later or change what is inside (when using let).

let vs const

Use const when the value should not change — like your username. Use let when the value might change — like a score in a game. Text goes in quotes. Numbers do not.

Try it

Create a variable for your name and one for your age. Print both on separate lines.

Try it yourself

Output

Press Run code to see results here.

Tip: Add a third variable for your favorite color and log it.