Function toBlob

src/utils/imageFileCompression.ts:95–107

(type: string, quality: number)

      ctx.drawImage(bitmap, 0, 0, targetWidth, targetHeight);
    },
    toBlob(type: string, quality: number): Promise<Blob> {
      if (isOffscreenCanvas(canvas)) {
        return canvas.convertToBlob({ type, quality });
      }

      return new Promise<Blob>((resolve, reject) => {
        canvas.toBlob(
          (blob: Blob | null) => blob ? resolve(blob) : reject(new Error('Failed to create blob')),
          type,
          quality
        );
      });
    },
  };
}