Note: This feature is available in Web Workers.
The ImageBitmap.close() method disposes of all graphical resources associated with an ImageBitmap.
close()None.
None (undefined).
const offscreen = new OffscreenCanvas(256, 256);
const gl = offscreen.getContext("webgl");
// Perform some drawing using the gl context
const bitmap = offscreen.transferToImageBitmap();
// ImageBitmap { width: 256, height: 256 }
bitmap.close();
// ImageBitmap { width: 0, height: 0 } — disposedImageBitmap.