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Swift - which types to use? NSString or String
...e String from repeating values:
let repeatingString = String(repeating:"123", count:2) // "123123"
In Swift 4 -> Strings Are Collection Of Characters:
Now String is capable of performing all operations which anyone can
perform on Collection type.
For more information please refer a...
How to do a JUnit assert on a message in a logger
...ate static final field, which most loggers are defined? Powermockito? Have fun..
– Stefano L
May 23 '19 at 17:46
Stefa...
Can a C++ enum class have methods?
...is not what John Doe would consider a class, too. Yet they can have member functions. And classes are really not mandatory for member functions. Using a designator like value or this, something like enum Size { Huge, Mega, Apocalypse; bool operator<(X rhs) const { return *this < rhs; } (here a...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
\unnnn
Unicode代码中十六进制代码为nnnn的字符
\cN
ASCII控制字符。比如\cC代表Ctrl+C
\A
字符串开头(类似^，但不受处理多行选项的影响)
\Z
字符串结尾或行尾(不受处理多行选项的影响)
\z
字符串结尾...
Clear the cache in JavaScript
...evision number or last updated timestamp to the file, like this:
myscript.123.js
or
myscript.js?updated=1234567890
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Haskell, Lisp, and verbosity [closed]
...:
almost anything you can do with macros you can do with a higher-order function (and I include monads, arrows, etc.), but it might require more thinking (but only the first time, and it's fun and you'll be a better programmer for it), and
the static system is sufficiently general that it never g...
How do I make a textbox that only accepts numbers?
...
And just because it's always more fun to do stuff in one line...
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);
}
NOTE: This DOES NOT prevent...
What does “coalgebra” mean in the context of programming?
I have heard the term "coalgebras" several times in functional programming and PLT circles, especially when the discussion is about objects, comonads, lenses, and such. Googling this term gives pages that give mathematical description of these structures which is pretty much incomprehensible to me. ...
Are there any Java method ordering conventions? [closed]
...
123
Class (static) variables: First the public class variables, then the
protected, and then the ...
Android: I am unable to have ViewPager WRAP_CONTENT
...pec); call. Putting the extra super.onMeasure() call at the start of this function did the trick. Also check stackoverflow.com/questions/38492210/…
– southerton
Aug 17 '16 at 11:30
...