void fillRect(
num x,
num y,
num width,
num height
)

Not documented.

Source

@DomName('CanvasRenderingContext2D.fillRect')
@DocsEditable()
void fillRect(num x, num y, num width, num height) => _blink.BlinkCanvasRenderingContext2D.instance.fillRect_Callback_4_(unwrap_jso(this), x, y, width, height);