81-canvas-api

JavaScript Canvas API 🎨

📺 Video

JavaScript canvas API

📝 Description

Learn how to use the HTML5 Canvas API to draw graphics, shapes, and animations directly on a webpage using JavaScript.

🎯 What You'll Learn

• Canvas element basics
• 2D rendering context
• Drawing shapes (rectangles, circles, lines)
• Colors and styles
• Paths and strokes
• Canvas animations

💻 Code Example

const canvas = document.getElementById('myCanvas');
const ctx = canvas.getContext('2d');

// Draw a rectangle
ctx.fillStyle = 'blue';
ctx.fillRect(50, 50, 200, 100);

// Draw a circle
ctx.fillStyle = 'red';
ctx.beginPath();
ctx.arc(250, 250, 50, 0, Math.PI * 2);
ctx.fill();

🎯 Key Takeaways

• Canvas provides a drawing surface for JavaScript
• Use getContext('2d') to get 2D rendering context
• Many methods available for shapes, text, images
• Great for games and visualizations

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Difficulty: Intermediate
Category: Canvas & Graphics