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Calling a method every x minutes
...
var startTimeSpan = TimeSpan.Zero;
var periodTimeSpan = TimeSpan.FromMinutes(5);
var timer = new System.Threading.Timer((e) =>
{
MyMethod();
}, null, startTimeSpan, periodTimeSpan);
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What is process.env.PORT in Node.js?
...set('port', ...), and that makes your server be able to accept a parameter from the environment what port to listen on.
If you pass 3000 hard-coded to app.listen(), you're always listening on port 3000, which might be just for you, or not, depending on your requirements and the requirements of the ...
Hidden features of mod_rewrite
...ess file is called).
Logging mod_rewrite requests
Logging may be enabled from within the httpd.conf file (including <Virtual Host>):
# logs can't be enabled from .htaccess
# loglevel > 2 is really spammy!
RewriteLog /path/to/rewrite.log
RewriteLogLevel 2
Common use cases
To funnel al...
Flexbox not giving equal width to elements
...hich you linked and that is flex-basis. By default flex-basis is auto.
From the spec:
If the specified flex-basis is auto, the used flex basis is the value of the flex item’s main size property. (This can itself be the keyword auto, which sizes the flex item based on its contents.)
Each...
What do you call the -> operator in Ruby?
...
=> == Hash Rocket
Separates keys from values in a hash map literal.
-> == Dash Rocket
Used to define a lambda literal in Ruby 1.9.X (without args) and Ruby 2.X (with args). The examples you give (->(x) { x * 2 } & lambda { |x| x * 2 }) are in fact...
Java OCR implementation [closed]
...ence.
I used it successfully in a personal project to identify the letter from an image such as this, you can find all the source for the OCR component of my application on github, here.
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Git push/clone to new server
...here else? I am behind a firewall so unfortunately I can't run git clone from the other machine.
5 Answers
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Unresolved external symbol on static class members
...got was to mark my class definition __declspec(dllexport), and when called from another class (outside that class's dll's boundaries), I of course got the my unresolved external error.
Still, easy to forget when you're changing an internal helper class to a one accessible from elsewhere, so if you'r...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
...
Ugh, you just need to use the FragmentPagerAdapter from the V13 support library
Android.Support.V13.App.FragmentPagerAdapter
Then all other Fragment related classes can be used from the "normal" libraries/namespaces, with the exception of ViewPager, but that's no big deal....
Visual Studio 2010 - C++ project - remove *.sdf file
...u can safely delete the .sdf file and ipch folder but you can also stop VS from putting those files in the project folder in the first place. (Useful if you have your source in an SVN or other synchronised folder, or if you store your project on a small volume like a USB stick or SSD and you don't w...