The CanvasGradient interface represents an opaque object describing a gradient. It is returned by the methods CanvasRenderingContext2D.createLinearGradient() or CanvasRenderingContext2D.createRadialGradient().
Representing an opaque object, there is no exposed property.
There is no inherited method.
CanvasGradient.addColorStop()offset and a color, to the gradient. If the offset is not between 0 and 1 an INDEX_SIZE_ERR is raised, if the color can't be parsed as a CSS <color>, a SYNTAX_ERR is raised.| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'CanvasGradient' in that specification. | Living Standard |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 4.0 | (Yes) | 3.6 (1.9.2) [1] | 9.0 | 9.0 | 3.1 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 2.1 | (Yes) | 1.0 (1.9.2) [1] | ? | 10.0 | 3.2 |
[1] Before Gecko 5.0, (Firefox 5.0 / Thunderbird 5.0 / SeaMonkey 2.2), specifying non-finite values when adding color stops through a call to addColorStop() incorrectly throws SYNTAX_ERR instead of INDEX_SIZE_ERR.
CanvasRenderingContext2D.<canvas> element and its associated interface, HTMLCanvasElement.
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https://developer.mozilla.org/en-US/docs/Web/API/CanvasGradient