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How do I alias commands in git?
...tion by copying git-completion.bash to your home directory and sourcing it from your ~/.bashrc. (I believe I learned about this from the Pro Git online book.) On Mac OS X, I accomplished this with the following commands:
# Copy git-completion.bash to home directory
cp usr/local/git/contrib/completi...
How do I read any request header in PHP
...18:
Meta-variables with names beginning with HTTP_ contain values read from the client request header fields, if the protocol used is HTTP. The HTTP header field name is converted to upper case, has all occurrences of - replaced with _ and has HTTP_ prepended to give the meta-variable name.
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What is JavaScript garbage collection?
...cript engine of Internet Explorer. Of course, the implementation will vary from browser to browser, though I suspect you could take a number of the common principles and apply them to other browsers.
Quoted from that page:
JScript uses a nongenerational
mark-and-sweep garbage collector. It
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Random number generation in C++11: how to generate, how does it work? [closed]
...entire sequence of "random" numbers, so a) use a different one (e.g. taken from /dev/urandom) each time, and b) store the seed if you wish to recreate a sequence of random choices.
#include <random>
typedef std::mt19937 MyRNG; // the Mersenne Twister with a popular choice of parameters
uint...
How does the socket API accept() function work?
... I don't know the implementation details (which probably vary from platform to platform), I just know that conceptually the sockets are identified by the quartet of information I described.
– 17 of 26
Jan 30 '09 at 12:36
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How can I clear previous output in Terminal in Mac OS X?
...nal manually:
⌘+K
Command+K for newer keyboards
To clear the terminal from within a shell script;
/usr/bin/osascript -e 'tell application "System Events" to tell process "Terminal" to keystroke "k" using command down'
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How do you save/store objects in SharedPreferences on Android?
...r to store class objects into SharedPreferences.
You can download this jar from google-gson
Or add the GSON dependency in your Gradle file:
implementation 'com.google.code.gson:gson:2.8.5'
Creating a shared preference:
SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);
To save:
MyObj...
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
...or Python 2) is a great way of serve the contents of the current directory from the command line:
13 Answers
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Queue.Queue vs. collections.deque
...e which multiple threads can put stuff into, and multiple threads may read from.
7 Answers
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How to convert an Int to a String of a given length with leading zeros to align?
...retty good (as in excellent) number formatting support which is accessible from StringOps enriched String class:
scala> "%07d".format(123)
res5: String = 0000123
scala> "%07d".formatLocal(java.util.Locale.US, 123)
res6: String = 0000123
Edit post Scala 2.10: as suggested by fommil, from 2....