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Difference between os.getenv and os.environ.get
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One difference observed (Python27):
os.environ raises an exception if the environmental variable does not exist.
os.getenv does not raise an exception, but returns None
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Package structure for a Java project?
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answered Oct 16 '08 at 22:54
johnstokjohnstok
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Understanding MongoDB BSON Document size limit
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First off, this actually is being raised in the next version to 8MB or 16MB ... but I think to ...
Generating a UUID in Postgres for Insert statement?
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edited Jan 27 '17 at 11:35
rightfold
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How do I write a correct micro-benchmark in Java?
...reputable paper on JVMs and micro-benchmarking. A good one is Brian Goetz, 2005. Do not expect too much from micro-benchmarks; they measure only a limited range of JVM performance characteristics.
Rule 1: Always include a warmup phase which runs your test kernel all the way through, enough to trigg...
Difference between res.send and res.json in Express.js
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The methods are identical when an object or array is passed, but res.json() will also convert ...
Action bar navigation modes are deprecated in Android L
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answered Jun 29 '14 at 5:15
ianhanniballakeianhanniballake
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iOS: Compare two dates
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According to Apple documentation of NSDate compare:
Returns an NSComparisonResult value th...
What is the optimal length for an email address in a database?
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The maximum length of an email address is 254 characters.
Every email address is composed of two parts. The local part that comes before the '@' sign, and the domain part that follows it. In "user@example.com", the local part is "user", and the domain part is "examp...