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How enumerate all classes with custom class attribute?
...sembly assembly) {
foreach(Type type in assembly.GetTypes()) {
if (type.GetCustomAttributes(typeof(HelpAttribute), true).Length > 0) {
yield return type;
}
}
}
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Finishing current activity from a fragment
... Oct 26 '11 at 19:41
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Why do we have to normalize the input for an artificial neural network?
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It's explained well here.
If the input variables are combined linearly, as in an MLP [multilayer perceptron], then it is
rarely strictly necessary to standardize the inputs, at least in theory. The
reason is that any rescaling of an input vector c...
What are the rules for JavaScript's automatic semicolon insertion (ASI)?
Well, first I should probably ask if this is browser dependent.
6 Answers
6
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How can I extract all values from a dictionary in Python?
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If you only need the dictionary keys 1, 2, and 3 use: your_dict.keys().
If you only need the dictionary values -0.3246, -0.9185, and -3985 use: your_dict.values().
If you want both keys and values use: your_dict.items() whi...
What's the most efficient test of whether a PHP string ends with another string?
...r_compare($str, $test, strlen($str)-strlen($test), strlen($test)) === 0;
If $test is longer than $str PHP will give a warning, so you need to check for that first.
function endswith($string, $test) {
$strlen = strlen($string);
$testlen = strlen($test);
if ($testlen > $strlen) retur...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...rray consistently outperforms the version with a presized array. Note that if you can reuse an existing array of the correct size, the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark (n) Mode Samples Score Error Units
c.a...
How does “do something OR DIE()” work in PHP?
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If the first statement returns true, then the entire statement must be true therefore the second part is never executed.
For example:
$x = 5;
true or $x++;
echo $x; // 5
false or $x++;
echo $x; // 6
Therefore, if your q...
How to get rid of the 'undeclared selector' warning
.... For example, there's a category method that should set an error property if the NSObject instance it's called on supports it. This is the code, and the code works as intended:
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How to put a line comment for a multi-line command [duplicate]
...sagree, Marwan's answer is clever but feels like an abuse of substitution. If anything I'd say Philipp's answer is closer to something I'd want to do.
– Alec
Sep 20 '17 at 18:27
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