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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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How to check if a table contains an element in Lua?
Is there a method for checking if a table contains a value ? I have my own (naive) function, but I was wondering if something "official" exists for that ? Or something more efficient...
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I want to delete all bin and obj folders to force all projects to rebuild everything
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This depends on the shell you prefer to use.
If you are using the cmd shell on Windows then the following should work:
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S bin') DO RMDIR /S /Q "%%G"
FOR /F "tokens=*" %%G IN ('DIR /B /AD /S obj') DO RMDIR /S /Q "%%G"
If you are u...
urllib2.HTTPError: HTTP Error 403: Forbidden
...I am unable to open using urllib2. I have tried changing user agent as specified in few questions earlier, I even tried to accept response cookies, with no luck. Can you please help.
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What is the “right” way to iterate through an array in Ruby?
... may seem like a lot to remember, but don't worry, you can get by without knowing all of them. But as you start to learn and use the different methods, your code will become cleaner and clearer, and you'll be on your way to Ruby mastery.
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The backend version is not supported to design database diagrams or tables
...ved and yes you were right - the 2012 version was already installed. Works now - thanks!
– JensOlsen
Aug 5 '14 at 20:07
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Convert Dictionary to semicolon separated string in c#
....Join(";", myDict.Select(x => x.Key + "=" + x.Value).ToArray());
(And if you're using .NET 4, or newer, then you can omit the final ToArray call.)
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How to stop unwanted UIButton animation on title change?
...add this before re-enabling animations (thank you @Klaas):
[_button layoutIfNeeded];
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Manually adding a Userscript to Google Chrome
...t": true is required if you want to use any of the supported GM_* methods.
Now, in Chrome's Extension manager (URL = chrome://extensions/), Expand "Developer mode".
Click the Load unpacked extension... button.
For the folder, paste in the folder for your script, In this example it is: C:\MyChromeScr...
Download file from web in Python 3
...nload a .jar (java) file from a web server, by reading the URL that is specified in the .jad file of the same game/application. I'm using Python 3.2.1
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