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How do I set up a basic Ruby project?
...creation, push it up to github
# create a github repository for your gem, then push it up
~/code/my_lib $ curl -u myusername https://api.github.com/user/repos -d '{"name":"my_lib"}'
~/code/my_lib $ git remote add origin git@github.com:myusername/my_lib.git
~/code/my_lib $ git push
Then, when you...
How can I plot with 2 different y-axes?
...(and setting xlab and ylab to be blank – ann=FALSE should also work) and then using axis(side=4) to add a new axis on the right-hand side, and mtext(...,side=4) to add an axis label on the right-hand side. Here is an example using a little bit of made-up data:
set.seed(101)
x <- 1:10
y <- r...
What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
... had dropped the least significant one instead of the most significant one then every multiplication loses a bit until eventually (after 62 steps) the seedUniquifier becomes stuck at zero.
– harold
Aug 7 '13 at 21:34
...
When to use static vs instantiated classes
... {
return $this->httpResponseFactory->build();
}
}
And then, in the index/main page, we'd do (this is the object wiring step, or the time to create the graph of instances to be used by the program):
$httpResponseFactory = new HttpResponseFactory;
$httpClient = new HttpC...
What is the significance of 1/1/1753 in SQL Server?
... legislated for the adoption of the Gregorian calendar for Britain and its then colonies.
There were some missing days (internet archive link) in the British calendar in 1752 when the adjustment was finally made from the Julian calendar. September 3, 1752 to September 13, 1752 were lost.
Kalen De...
Difference between a “coroutine” and a “thread”?
...the heaviest weight (in terms of memory usage and context-switching time), then coroutines, and finally generators are the lightest weight.
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Android destroying activities, killing processes
...ton on your device, your current foreground activity is put onto onPause() then onStop(), the other 4 should remain onStop()
According to Google's Documents:
If an activity in the foreground of the screen (at the top of the stack), it is active or running.
If an activity has lost focus but...
MongoDB/NoSQL: Keeping Document Change History
...other approach would be to store only the changed fields in a new version. Then you can 'flatten' your history to reconstruct any version of the document. This is rather complex though, as you need to track changes in your model and store updates and deletes in a way that your application can recons...
Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
...d this place all the variables you wish to define in a short shell script, then have a look at this previous answer about how to run a script on MacOS login. That way the the script will be invoked when the user logs in.
[Edit]: Neither solution is perfect as the variables will only be set for that...
How to change the background color of the options menu?
...t how to replace Android's view (I'm sure the devil's in the details here) then it might be a nice solution that doesn't require any undocumented hacks.
HACK:
Here is the code.
To use this code, call addOptionsMenuHackerInflaterFactory() ONCE from your activity onCreate() or your activity onCreat...