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File.image?

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Daniel Berger edited this page May 24, 2021 · 4 revisions

File.image?(file)

The File.image? method will return a boolean to indicate whether or not the file you've specified is an image or not.

For purposes of this library, an image is a file that is identified as a jpeg, gif, png, bmp, tiff or ico file. The implementation does a check against the first few bytes of the file as well as the file extension, though the latter can be disabled.

Specific Image Test Methods

Instead of checking for a generic image result, you can check for a specific type of image using the following methods:

  • File.bmp?
  • File.jpg?
  • File.gif?
  • File.ico?
  • File.png?
  • File.tiff?
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