What are the core concepts covered in Canvas 2D API & Scalable Vector Graphics (SVG)?

Canvas 2D context (ctx.fillRect, ctx.arc, requestAnimationFrame); Inline SVG elements ( , , ) and CSS styling; Choosing between Canvas (pixels/games) vs SVG (crisp resolution-independent icons/charts)

Intermediate 18 min readModule: Module 9: HTML5 Canvas 2D & SVG Vector Graphics

Canvas 2D API & Scalable Vector Graphics (SVG)

Draw dynamic raster graphics via JavaScript Canvas 2D and render crisp scalable SVG vectors.

What You Will Learn in This Lesson

Canvas 2D context (ctx.fillRect, ctx.arc, requestAnimationFrame)
Inline SVG elements (<circle>, <path>, <rect>) and CSS styling
Choosing between Canvas (pixels/games) vs SVG (crisp resolution-independent icons/charts)

Introduction & Core Concept

HTML5 provides two distinct graphic systems: <canvas> for scriptable bitmap pixel drawing (charts, game rendering) and <svg> for scalable XML vector graphics.

WHY DOES THIS MATTER IN THE REAL WORLD?

SVGs scale infinitely without losing quality on high-DPI Retina displays, making them ideal for logos, icons, and UI charts.

Inline SVG Vector Icon & Canvas 2D Box

html

1
2
3
4
5
6
7
<!-- Scalable Vector Graphic -->
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#2563eb" stroke-width="2">
  <path d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"/>
</svg>
 
<!-- 2D Canvas Target -->
<canvas id="myCanvas" width="300" height="150"></canvas>

Line-by-Line Technical Breakdown

1Canvas is procedural (raster); SVG is declarative (DOM-based).

Try It Yourself (Interactive Editor)

Modify the code in real-time and click Run to test live browser output and console logs.

Intelligent Code Runner & Live Sandbox[HTML]

HTML SOURCE EDITOR

Interactive Live Code

Industry Best Practices & Professional Standards

Use SVG for UI icons and data charts; use Canvas for particle systems and games.

Lesson Summary & Core Takeaways

Canvas and SVG provide complete 2D visual rendering capabilities in the browser.