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What is the fastest way to check if a class has a function defined?
...
The responses herein check if a string is the name of an attribute of the object. An extra step (using callable) is needed to check if the attribute is a method.
So it boils down to: what is the fastest way to check if an object obj has an attribute attrib...
What is the difference between a framework and a library?
...versions of the library. It can contain extra resources (images, localized strings, XML data files, UI objects, etc.) and unless the framework is released to public, it usually contains the necessary .h files you need to use the library.
Thus you have everything within a single package you need to...
What does “Memory allocated at compile time” really mean?
...our code will increase the bin's size in a linear fashion.
If the 1k is a string, of a thousand chars, which is declared like so
const char *c_string = "Here goes a thousand chars...999";//implicit \0 at end
and you then were to vim your_compiled_bin, you'd actually be able to see that string in...
Array.Add vs +=
...e tried this. I create it using New-Object System.Collections.Generic.List[string] but then if I do .GetType, it tells me it is an array.
– Preza8
Jun 12 '17 at 12:35
1
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Reduce, fold or scan (Left/Right)?
...the collection (from A to C):
val abc = List("A", "B", "C")
def add(res: String, x: String) = {
println(s"op: $res + $x = ${res + x}")
res + x
}
abc.reduceLeft(add)
// op: A + B = AB
// op: AB + C = ABC // accumulates value AB in *first* operator arg `res`
// res: String = ABC
abc.foldLe...
Rails: Using greater than/less than with a where statement
...xibility with your ARel queries if you're able to use the hash syntax over strings which is why many would prefer this solution. Depending on your project/team/organization you may want something that is easier for someone glancing at the code to figure out, which the accepted answer is.
...
Direct vs. Delegated - jQuery .on()
... multiple different events (you can put multiple event names in that first string.) .click() is just a shorthand for that first form.
– N3dst4
Aug 1 '13 at 7:45
1
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svn: replace trunk with branch
...ations/reorganizations using svndumpfilter. There are times when a little extra work now can save a lot of extra work later, and by keeping an easy use of svndumpfilter available for future migrations/reorganizations mitigates the risk at a relatively low cost.
...
PHP Function Comments
... * Potential values are 'good', 'fair', 'poor' and 'unknown'.
* @var string $foo
*/
public $foo = 'unknown';
/**
* The status of life
* Note that names of private properties or methods must be
* preceeded by an underscore.
* @var bool $_good
*/
privat...
Handling the window closing event with WPF / MVVM Light Toolkit
...cept complexity by using a more elaborate pattern with more indirection (5 extra lines of XAML plus Command pattern).
The "zero code-behind" mantra is not the goal in itself, the point is to decouple ViewModel from the View. Even when the event is bound in code-behind of the View, the ViewModel do...