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Unnamed/anonymous namespaces vs. static functions
...nly. The static keyword applied to entity declared in namespace scope specifies its internal linkage. Entity declared in anonymous namespace has external linkage (C++/3.5) however it is guaranteed to live in uniquely named scope. This anonymity of unnamed namespace effectively hides its declaratio...
Python Infinity - Any caveats?
...t returns either 0.0 or inf. So it does work correctly when the input is inifinty, but not when the result should be infinity.
– Abel
May 9 '15 at 14:50
2
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Calculating arithmetic mean (one type of average) in Python
...is a bad variable name because it looks so much like 1. Also, I would use if l rather than if len(l) > 0. See here
– zondo
Apr 13 '16 at 22:40
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Change a column type from Date to DateTime during ROR migration
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If you're wondering why a single change method isn't used instead of the up and down methods, it's because the change method doesn't support the change_column migration definition.
– Dennis
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How do I temporarily disable triggers in PostgreSQL?
I'm bulk loading data and can re-calculate all trigger modifications much more cheaply after the fact than on a row-by-row basis.
...
How to randomize (shuffle) a JavaScript array?
...nswer skips element 0, the condition should be i-- not --i. Also, the test if (i==0)... is superfluous since if i == 0 the while loop will never be entered. The call to Math.floor can be done faster using ...| 0. Either tempi or tempj can be removed and the value be directly assigned to myArray[i] o...
Check whether a string contains a substring
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To find out if a string contains substring you can use the index function:
if (index($str, $substr) != -1) {
print "$str contains $substr\n";
}
It will return the position of the first occurrence of $substr in $str, or -1 if the ...
How to add JTable in JPanel with null layout?
... SwingUtilities.updateComponentTreeUI(frame);
if (pack.isSelected()) {
frame.pack();
frame.setMinimumSize(frame.getSize());
}
} catch(Exception e) {
...
Rank function in MySQL
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+1 for the devious inline initialization, that's a beautiful trick.
– Charles
Jul 26 '10 at 9:42
29
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iOS: Compare two dates
...two NSDate and I try with NSOrderAscending and NSOrderDescending but if my date is equal at other two dates?
6 Answer...