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HTML: How to limit file upload to be only images?
...le").value="; //clear the uploaded file
}
}
</script>
Now in the html part
<input type="file" onchange="chng()">
this code will check if the uploaded file is a jpg file or not and restricts the upload of other types
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How to get HTTP response code for a URL in Java?
...about the exception raised by the getRespondeCode() method? By the way, I know how to handle my error, and I just want to know how to differentiate each exception (or at least this specific exception). Thanks.
– grattmandu03
Sep 19 '13 at 15:23
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Delete a single record from Entity Framework?
...ng up the objects just to delete them, this way you can delete by ID. You know, that's how the DELETE statement works in SQL normally.
– siride
Jul 11 '16 at 18:18
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How do I manually create a file with a . (dot) prefix in Windows? For example, .htaccess
...
I did not know that. So one can simple create the file by typing ".htaccess." in explorer, and the last dot will be removed automatically. Nice.
– foens
Mar 14 '13 at 9:18
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Run a string as a command within a Bash script
...p -Eo '[[:digit:]]{4}[[:digit:]]{2}[[:digit:]]{2}')
echo $cmd
My output is now 20200824
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Why can't I reference System.ComponentModel.DataAnnotations?
...or 2010. I added this file and it seems to 'work', in that IntelliSense is now recognizing attributes on class members, such as [Display(Name = "My Property Name")]. Whether or not this works for everything else in this .dll I don't know.]
(1)
Microsoft Visual Studio Professional 2013
Version 12...
Run cron job only if it isn't already running
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Use flock. It's new. It's better.
Now you don't have to write the code yourself. Check out more reasons here: https://serverfault.com/a/82863
/usr/bin/flock -n /tmp/my.lockfile /usr/local/bin/my_script
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Returning http status code from Web Api controller
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I did not know the answer so asked the ASP.NET team here.
So the trick is to change the signature to HttpResponseMessage and use Request.CreateResponse.
[ResponseType(typeof(User))]
public HttpResponseMessage GetUser(HttpRequestMessag...
HTML code for an apostrophe
...he question says “apostrophe”, not “single quote”. If you already know you want an apostrophe, you might as well use the proper apostrophe &#8217; (’). It does no harm and will make some readers happier.
– Rory O'Kane
Jun 18 '12 at 17:34
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Remove carriage return in Unix
...indly within a file (you may have them in the middle of strings for all I know). Using this test file with a CR at the end of the first line only:
$ cat infile
hello
goodbye
$ cat infile | od -c
0000000 h e l l o \r \n g o o d b y e \n
0000017
dos2unix is the way to go...