The CanvasRenderingContext2D.beginPath() method of the Canvas 2D API starts a new path by emptying the list of sub-paths. Call this method when you want to create a new path.
Note: To create a new sub-path, i.e., one matching the current canvas state, you can use CanvasRenderingContext2D.moveTo().
void ctx.beginPath();
This example creates two paths, each of which contains a single line.
<canvas id="canvas"></canvas>
The beginPath() method is called before beginning each line, so that they may be drawn with different colors.
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
// First path
ctx.beginPath();
ctx.strokeStyle = 'blue';
ctx.moveTo(20, 20);
ctx.lineTo(200, 20);
ctx.stroke();
// Second path
ctx.beginPath();
ctx.strokeStyle = 'green';
ctx.moveTo(20, 20);
ctx.lineTo(120, 120);
ctx.stroke();
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'CanvasRenderingContext2D.beginPath' in that specification. | Living Standard |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | 12 | Yes | Yes | Yes | Yes |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
CanvasRenderingContext2D
CanvasRenderingContext2D.closePath()
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https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/beginPath