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Find a pair of elements from an array whose sum equals a given number
...another hash table keyed by a value-pair would do the trick. Still a nice, compact, elegant answer. +1
– William
Feb 10 '11 at 18:49
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Can I run multiple versions of Google Chrome on the same machine? (Mac or Windows)
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In the comments, I mentioned a step-by-step method to easily install multiple Chrome versions, side-by-side. This answer quotes my original answer, and includes a script which does the job for you.
Quoted from: section 7 of Cros...
Capistrano error tar: This does not look like a tar archive
...lking about the bare git repo that Capistrano by default would put in /var/www/$application/repo (for other people's reference).
In your case it does not have a local feature/Capistrano branch so when running git archive feature/Capistrano nothing is output to that | pipe. To confirm, ssh into the ...
How to set Oracle's Java as the default Java in Ubuntu?
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Why is there no GIL in the Java Virtual Machine? Why does Python need one so bad?
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There is a comment down below in this blog post http://www.grouplens.org/node/244 that hints at the reason why it was so easy dispense with a GIL for IronPython or Jython, it is that CPython uses reference counting whereas the other 2 VMs have garbage collectors.
The exact mecha...
In SQL, how can you “group by” in ranges?
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Better answer at stackoverflow.com/questions/14730380/…
– Thunder
May 27 '15 at 7:24
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MySQL “NOT IN” query
... will always return FALSE because NOT IN is treated as <> ALL, which compares all rows from the subquery like Table1.principal <> table2.principal, which fails when comparing with NULL: Table1.principal <> NULL will not result in TRUE. To fix: NOT IN (SELECT principal FROM table2 W...
How to elegantly ignore some return values of a MATLAB function?
... edited May 23 '17 at 11:46
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answered Apr 14 '09 at 13:04
Jason SJason S
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Change from SQLite to PostgreSQL in a fresh Rails project
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How can I join elements of an array in Bash?
If I have an array like this in Bash:
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