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How can I get System variable value in Java?
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edited Aug 29 '17 at 22:50
Steve Kuo
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Syntax for a single-line Bash infinite while loop
I am having trouble coming up with the right combination of semicolons and/or braces. I'd like to do this, but as a one-liner from the command line:
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Is there a performance gain in using single quotes vs double quotes in ruby?
...70000 0.000000 0.270000 ( 0.278146)
Note: I've updated this to make it work with newer Ruby versions, and cleaned up the header, and run the benchmark on a faster system.
This answer omits some key points. See especially these other answers concerning interpolation and the reason there is n...
A good solution for await in try/catch/finally?
...an async method in a catch block before throwing again the exception (with its stack trace) like this :
4 Answers
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Install Application programmatically on Android
I'm interested in knowing if it is possible to programmatically install a dynamically downloaded apk from a custom Android application.
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How can I get a count of the total number of digits in a number?
How can I get a count of the total number of digits of a number in C#? For example, the number 887979789 has 9 digits.
16 A...
“Uncaught TypeError: Illegal invocation” in Chrome
When I use requestAnimationFrame to do some native supported animation with below code:
3 Answers
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MongoDB drop every database
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you can create a javascript loop that do the job and then execute it in the mongoconsole.
var dbs = db.getMongo().getDBNames()
for(var i in dbs){
db = db.getMongo().getDB( dbs[i] );
print( "dropping db " + db.getName() );
db.dropDatabase();
}
save it to dropall.js and then ex...
How do you run a crontab in Cygwin on Windows?
Some cygwin commands are .exe files, so you can run them with the standard Windows Scheduler, but others don't have an .exe extension so can't be run from DOS (it seems like).
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How to elegantly rename all keys in a hash in Ruby? [duplicate]
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edited Jan 9 at 16:40
answered Nov 9 '10 at 20:02
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