my.createCanvasContext

Use this API to create a canvas context for drawing graphics.

Parameters

Property	Type	Required	Description
canvasId	String	Yes	The canvas component ID

Returns a CanvasContext object with drawing methods.

const ctx = my.createCanvasContext('myCanvas');

ctx.setFillStyle('red');
ctx.fillRect(10, 10, 150, 100);
ctx.draw();

<canvas id="myCanvas" style="width: 300px; height: 200px;"></canvas>

Query DOM elements