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Get Unix Epoch Time in Swift
...h what's documented as "sub-millisecond" precision, which I've observed to mean usually microseconds but sometimes one scale (one digit to the right of the decimal) less or more. When it returns a scale of 5 (5 digits after the decimal), I don't know if Swift is dropping the trailing 0 or it couldn'...
Mixins vs. Traits
... Mixins and Traits in D are completely different from what the terms mean in Computer Science generally. In D, both are preprocessor primitives for automatic code generation. In other languages, they are inheritance mechanisms. The naming decision in D is unfortunate.
– t...
Bash: If/Else statement in one line
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&& means "and if successful"; by placing your if statement on the right-hand side of it, you ensure that it will only run if grep returns 0. To fix it, use ; instead:
ps aux | grep some_proces[s] > /tmp/test.txt ; if [ $?...
Meaning of @classmethod and @staticmethod for beginner? [duplicate]
Could someone explain to me the meaning of @classmethod and @staticmethod in python? I need to know the difference and the meaning.
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Exact time measurement for performance testing [duplicate]
...seconds;
print timings[i];
}
print "normalized mean: " + timings.NormalizedMean().ToString();
}
public static void BenchmarkCpu(Action action, int iterations = 10000)
{
Benchmark<CpuWatch>(action, iterations);
}
}
Just call
Clock.Benchma...
Passing HTML to template using Flask/Jinja2
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I mean, for example, I have a file called userHome.html, and I would like to use return render_template('userHome.html'), but it does not render correctly and all turn to html entities in my chrome console.
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How can I remove a key and its value from an associative array?
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foreach ($key1 seems wrong. Did you mean foreach ($values?
– Pang
May 6 '16 at 6:52
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What is a CSRF token ? What is its importance and how does it work?
...s you don’t explicitly
configure your web server otherwise).
This means, often you do not even have to add a CSRF token to AJAX
requests, even if they are POST requests, but you will have to make
sure that you only bypass the CSRF check in your web application if
the POST request is a...
How can I modify the size of column in a MySQL table?
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+1 you're guys have the same answer. what does it mean data type of the column will be MEDIUMTEXT? thx
– vehomzzz
Aug 14 '09 at 19:06
3
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Difference between null and empty (“”) Java String
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"" is an actual string, albeit an empty one.
null, however, means that the String variable points to nothing.
a==b returns false because "" and null do not occupy the same space in memory--in other words, their variables don't point to the same objects.
a.equals(b) returns false bec...