FAQ

On Thu, 6 Nov 2014 06:38:40 -0800 (PST) Hoai Ninh wrote:

I am going to save image from url
but the problem is that I dont know how to get the image extensions
to exactly save to this kind of image type
eg: http://upload.wikimedia.org/wikipedia/en/b/bc/Wiki.png
I want to save to file name by creating like this: file_name + "." +
file_extension
It's not quite clear what really about you're asking: do you want to
extract the extension of the last path component of a known URI (like
that one you've cited) or do you want to somehow "know" an extension
for a file to save an image given its MIME type (like in image/png)?

The first task can be carried out using the Ext() function of the
path/filepath package while the latter can be done using a lookup map
which associates known MIME types with extension strings.

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postedNov 6, '14 at 2:38p
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