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Booleans, conditional operators and autoboxing
...l() method affects the static typing of the expressions at compile time:
E1: `true ? returnsNull() : false` - boolean (auto-unboxing 2nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Opera...
Running multiple commands in one line in shell
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edited Apr 26 '14 at 1:06
answered Feb 27 '11 at 1:44
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break out of if and foreach
...defines how many loop structures it should break. Example:
foreach (array('1','2','3') as $a) {
echo "$a ";
foreach (array('3','2','1') as $b) {
echo "$b ";
if ($a == $b) {
break 2; // this will break both foreach loops
}
}
echo ". "; // never r...
range over interface{} which stores a slice
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137
Well I used reflect.ValueOf and then if it is a slice you can call Len() and Index() on the va...
Automatically plot different colored lines
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131
You could use a colormap such as HSV to generate a set of colors. For example:
cc=hsv(12);
fi...
How might I convert a double to the nearest integer value?
...ossibly in conjunction with MidpointRounding.AwayFromZero
eg:
Math.Round(1.2) ==> 1
Math.Round(1.5) ==> 2
Math.Round(2.5) ==> 2
Math.Round(2.5, MidpointRounding.AwayFromZero) ==> 3
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How to copy directories in OS X 10.7.3?
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251
Is there something special with that directory or are you really just asking how to copy directo...
What does the caret operator (^) in Python do?
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177
It's a bitwise XOR (exclusive OR).
It results to true if one (and only one) of the operands (...
Backporting Python 3 open(encoding=“utf-8”) to Python 2
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178
1. To get an encoding parameter in Python 2:
If you only need to support Python 2.6 and 2.7 yo...
How can I select from list of values in SQL Server
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