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Fastest way to check if string contains only digits
...ew SortedSet<string>(); //s = string.Concat(Enumerable.Range(0, 127).Select(i => ((char)i ^ '0') < 10 ? 1 : 0));
w.Restart(); for (int i = 0; i < r; i++) b = s.All(char.IsDigit); w.Stop(); ss.Add(w.Elapsed + ".All .IsDigit");
w.Restart(); for (int i = 0; i < r; i++) b = s....
How do I specify unique constraint for multiple columns in MySQL?
... For those people using MySQL workbench: go to the Indexes tab and select UNIQUE as your type. Give your index a name and check the appropriate columns under the section "Index Columns"
– Pakman
Jun 3 '13 at 20:42
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How to thoroughly purge and reinstall postgresql on ubuntu? [closed]
...tc/group in favour of safer userdel and groupdel. Also, rather than using dselect for hand-selection of packages, use an apt wildcard to match them reliably.
– Craig Ringer
Aug 9 '12 at 1:15
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How to discard local changes in an SVN checkout?
...ore git commit
$ git add -p
<interactively select (and edit) the chunks you want to share>
$ git add ${the_list_of_files_not_in_yet_in_svn_you_want_to_add}
$ git commit
Using the commit, prepare a patch that you want to share. For this purpose, you could also use ...
HTML: How to limit file upload to be only images?
...t will show all files. So the Javascript part validates whether or not the selected file is an actual image.
<div class="col-sm-8 img-upload-section">
<input name="image3" type="file" accept="image/*" id="menu_images"/>
<img id="menu_image" class="preview_img" />
&...
How to set the Default Page in ASP.NET?
...ion, should I use the providers MemberShip or stuff ? I mean when I simply select Authentication Mode as Form rather than Windows, this code will work charmingly right ?
– Tarik
Dec 16 '09 at 8:14
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Detect the Enter key in a text input field
...re for for legacy browsers support)
// keyup is not compatible with Jquery select(), Keydown is.
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Running script upon login mac [closed]
...
Follow this:
start Automator.app
select Application
click Show library in the toolbar (if hidden)
add Run shell script (from the Actions/Utilities)
copy & paste your script into the window
test it
save somewhere (for example you can make an Applications...
Integrating the ZXing library directly into my Android application
......
Navigate to the newly extracted folder and open the core directory and select core.jar ... hit enter!
Now you just have to correct a few errors in the translations and the AndroidManifest.xml file :) Now you can happily compile, and you will now have a working standalone barcode scanner app, b...
What is the GAC in .NET?
... the References window. (Right-click on a project in Solution Explorer and select Add Reference.) This should give you a more tangeable idea.
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