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Check if image exists on server using JavaScript?
...no check if that file actually is an image. It could be .pdf, .html, some random file renamed to *.jpg or *.png. If something ends with .jpg it doesn't mean it's 100% image :)
– CoR
Jun 16 '15 at 9:53
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Set cache-control for entire S3 bucket automatically (using bucket policies?)
I need to set cache-control headers for an entire s3 bucket, both existing and future files and was hoping to do it in a bucket policy.
I know I can edit the existing ones and I know how to specify them on put if I upload them myself but unfortunately the app that uploads them cannot set the header...
How can I sort generic list DESC and ASC?
How can I sort generic list DESC and ASC? With LINQ and without LINQ? I'm using VS2008.
5 Answers
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How to call function from another file in go language?
... one function with a given name in a package.
Remove the main in test2.go and compile the application. The demo function will be visible from test1.go.
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ASP.NET MVC 3 - Partial vs Display Template vs Editor Template
...playFor is simple. The semantics of the methods is to generate edit/insert and display/read only views (respectively). Use DisplayFor when displaying data (i.e. when you generate divs and spans that contain the model values). Use EditorFor when editing/inserting data (i.e. when you generate input ta...
How to RSYNC a single file?
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-a includes recursive and that is not needed for a single file not sure if I would use that flag for single file as it can lead to unintended behavior if the filename by accident becomes a directory.
– redanimalwar
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Where is shared_ptr?
...examples I see show complete code to include the headers for shared_ptr (and working). Simply stating std , tr1 and <memory> is not helping at all! I have downloaded boosts and all but still it doesn't show up! Can someone help me by telling exactly where to find it?
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How does this print “hello world”?
...th this codification scheme you can have all 26 (one case) english letters and 6 symbols (being space among them).
Algorithm description
The >>= 5 in the for-loop jumps from group to group, then the 5-bits group gets isolated ANDing the number with the mask 31₁₀ = 11111₂ in the sentenc...
Root user/sudo equivalent in Cygwin?
...r on SuperUser:
I found the answer on the Cygwin mailing list. To run command with elevated privileges in Cygwin, precede the command with cygstart --action=runas like this:
$ cygstart --action=runas command
This will open a Windows dialogue box asking for the Admin password and run the command ...
Asynctask vs Thread in android
...PU-intensive tasks, there are basically two ways to do this: Java threads, and Android's native AsyncTask.
Neither one is necessarily better than the other, but knowing when to use each call is essential to leveraging the system's performance to your benefit.
Use AsyncTask for:
Simple network op...