Introduction to Computer Science in JavaScript Demos

See some programs you will be able to write with CodeHS.

Breakout


The classic arcade game.

Snake


The classic arcade game.

Simple Snake


The classic arcade game.

Helicopter


Hold the mouse button down to go up. Avoid the obstacles.

Flappy Karel


Click to flap.

Avalanche


Move the mouse to avoid the obstacles.

The Game of Life


Watch Conway's classic game of life.

Evolution Simulation


Simulate evolution and gene combination.

Tic Tac Toe


Get three Xs or three Os in a row to win.

Connect Four


The original vertical strategy game where you try to get four in a row.

Random Circles


Circles of random size and color appear on the window.

Water Color Grid


Move the mouse to generate a water color.

Drawing Circles


Click and drag to draw circles.

Blinking Rectangles


Move the mouse.

Drawing Lines


Click and drag to draw lines.

Bouncing Ball


A ball bounces around the window.

Drawing


Select different colors and paint on a canvas.

Kick-Ups


See how long you can keep the ball in the air. Tap or click to kick it.

Paint Splatter


Click or tap to add a splatter.

Tetris


Play the classic videogame built in the Sandbox by CodeHS Tutor Brandon Okumura.

Music Visualizer


Create your own music visualization!

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