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What is the difference between Trap and Interrupt?
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209
A trap is an exception in a user process. It's caused by division by zero or invalid memory acc...
How do I add a foreign key to an existing SQLite table?
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202
You can't.
Although the SQL-92 syntax to add a foreign key to your table would be as follows...
CSS3 box-sizing: margin-box; Why not?
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Couldn't you use width: calc(50% - 24px); for your cols? Then set your margins.
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How many database indexes is too many?
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edited Sep 27 '08 at 9:10
answered Sep 26 '08 at 18:52
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What's a concise way to check that environment variables are set in a Unix shell script?
...oughts on this discussion? https://github.com/koalaman/shellcheck/issues/380#issuecomment-145872749
The gist of the discussion is:
… However, when I shellcheck it (with version 0.4.1), I get this message:
In script.sh line 13:
: ${FOO:?"The environment variable 'FOO' must be set and non-empty"}...
How to edit multi-gigabyte text files? Vim doesn't work =( [closed]
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edited Jul 10 '14 at 14:05
TRiG
8,81955 gold badges4343 silver badges9696 bronze badges
an...
How to convert Linux cron jobs to “the Amazon way”?
...r.apache.org/doc/r3.2.2/recipes.html
http://highscalability.com/blog/2010/3/22/7-secrets-to-successfully-scaling-with-scalr-on-amazon-by-se.html
Also I have seen reference to using memcached or a similar caching
mechanism as a way to create locks with a TTL. In this way you set a
flag...
How do I calculate someone's age in Java?
...en(birthDate, currentDate).getYears();
} else {
return 0;
}
}
}
A JUnit test to demonstrate its use:
public class AgeCalculatorTest {
@Test
public void testCalculateAge_Success() {
// setup
LocalDate birthDate = LocalDate.of(1961, 5, 17);
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Javascript event handler with parameters
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100
I don't understand exactly what your code is trying to do, but you can make variables available...
Exception.Message vs Exception.ToString()
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Feb 1 '10 at 12:55
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