Function findImageFormat

findImageFormat(fileOrName: string | ImageFormatCode | File | Uint8Array, defaultImageFormat?: ImageFormatCode): ImageFormatCode
Find the image format for the file specified by the fileOrName parameter.
Parameters
- fileOrName: string | ImageFormatCode | File | Uint8Array
  
  File object or file name string
- defaultImageFormat: ImageFormatCode = ImageFormatCode.Default
  
  Optional.
Returns ImageFormatCode