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Returning a boolean from a Bash function
...hen echo "is directory"; else echo "nopes"; fi
Edit
From @amichair's comment, these are also possible
isdirectory() {
if [ -d "$1" ]
then
true
else
false
fi
}
isdirectory() {
[ -d "$1" ]
}
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Android studio, gradle and NDK
...ndroid-ndk-preview
The integration will stay a preview even after 1.3 becomes final. No current ETA as to when it'll be final (as of 2015/07/10).
More information here: http://tools.android.com/tech-docs/android-ndk-preview
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What is the difference between == and Equals() for primitives in C#?
...base object.Equals(object) and return true if the boxed object is of the same type and value. (Note that it will also work for nullable types; non-null nullable types always box to an instance of the underlying type.)
Since newAge is a short, its Equals(object) method only returns true if you pass a...
What is the proper way to re-throw an exception in C#? [duplicate]
... the trace resulting from "throw ex", you'll see that it ends on that statement and not at the real source of the exception.
Basically, it should be deemed a criminal offense to use "throw ex".
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Joda-Time: what's the difference between Period, Interval and Duration?
In Joda-Time 2, what is the difference between the three kinds of time spans:
2 Answers
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Have a fixed position div that needs to scroll if content overflows
...ed Oct 28 '18 at 16:00
Matilda Smeds
85688 silver badges1616 bronze badges
answered Aug 21 '13 at 20:01
stride...
Add spaces before Capital Letters
...i]);
}
return newText.ToString();
}
Will do it 100,000 times in 2,968,750 ticks, the regex will take 25,000,000 ticks (and thats with the regex compiled).
It's better, for a given value of better (i.e. faster) however it's more code to maintain. "Better" is often compromise of com...
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
I get some error that I can't figure out. Any clue what is wrong with my sample code?
4 Answers
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Which Architecture patterns are used on Android? [closed]
...d model–view–presenter architectural patterns for doing android development. My findings are model–view–controller works fine, but there are a couple of "issues". It all comes down to how you perceive the Android Activity class. Is it a controller, or is it a view?
The actual Activity class...
postgresql COUNT(DISTINCT …) very slow
...
You can use this:
SELECT COUNT(*) FROM (SELECT DISTINCT column_name FROM table_name) AS temp;
This is much faster than:
COUNT(DISTINCT column_name)
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