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How does the Java 'for each' loop work?
... I've found just calling a while-loop like while (someList.hasMoreElements()) { //do something }} - gets me close to the coding grace I'd hoped to find when I searched for this question.
– James T Snell
Nov 16 '12 at 18:10
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MySQL check if a table exists without throwing an exception
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There is no more support for mysql_* functions, they are officially deprecated, no longer maintained and will be removed in the future. You should update your code with PDO or MySQLi to ensure the functionality of your project in the fut...
heroku - how to see all the logs
...il the logs live
heroku logs -t
Heroku log documentation
If you need more than a few thousand lines you can Use heroku's Syslog Drains
Alternatively (old method):
$ heroku run rails c
File.open('log/production.log', 'r').each_line { |line| puts line }
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Two inline-block, width 50% elements wrap to second line [duplicate]
... to eradicate from dynamic situations without a post-processor which costs more CPU-time for marginal bandwidth savings.
– Phil Ricketts
Jul 24 '12 at 17:35
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unix - head AND tail of file
...first 10 lines of its input, there is no guaranteed that it didn't consume more of it in order to find the 10th line ending, leaving less of the input for less to display.
– chepner
Feb 12 '16 at 16:58
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Flags to enable thorough and verbose g++ warnings
...t. I suspect
that code that triggers this warning could benefit from being more
modular, regardless, so although the code is not technically wrong
(probably), stylistically it likely is.
-Wfloat-equal warns for safe equality comparisons (in particular,
comparison with a non-computed value of -1). An...
OSX - How to auto Close Terminal window after the “exit” command executed.
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You can use the link for more and step wise step info cnet.com/news/terminal-tip-close-windows-after-clean-exit
– Krishan Kumar Mourya
Jan 12 '18 at 7:37
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How can I pad a String in Java?
...really makes no difference which lib to use. That said, Guava is overall a more modern, cleaner and better documented lib than its counterparts in various Apache Commons projects (Commons Lang, Commons Collections, Commons IO, etc). It's also built by really smart guys (Kevin Bourrillion et al), man...
How to find all occurrences of a substring?
...n string function that does what you're looking for, but you could use the more powerful regular expressions:
import re
[m.start() for m in re.finditer('test', 'test test test test')]
#[0, 5, 10, 15]
If you want to find overlapping matches, lookahead will do that:
[m.start() for m in re.finditer...
Format a datetime into a string with milliseconds
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