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The CanvasGradient.addColorStop() method adds a new color stop, defined by an offset and a color, to a given canvas gradient.
addColorStop(offset, color)
offset
A number between 0 and 1, inclusive, representing the position of the color stop. 0 represents the start of the gradient and 1 represents the end.
color
None (undefined).
IndexSizeError DOMException
Thrown if offset is not between 0 and 1 (both included).
SyntaxError DOMException
Thrown if color cannot be parsed as a CSS <color> value.
This example uses the addColorStop method to add stops to a linear CanvasGradient object. The gradient is then used to fill a rectangle.
<canvas id="canvas"></canvas>
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");
let gradient = ctx.createLinearGradient(0, 0, 200, 0);
gradient.addColorStop(0, "green");
gradient.addColorStop(0.7, "white");
gradient.addColorStop(1, "pink");
ctx.fillStyle = gradient;
ctx.fillRect(10, 10, 200, 100);
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