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How to generate unique ID with node.js
...r issue with a callback as follows:
function generate(count, k) {
var _sym = 'abcdefghijklmnopqrstuvwxyz1234567890',
var str = '';
for(var i = 0; i < count; i++) {
str += _sym[parseInt(Math.random() * (_sym.length))];
}
base.getID(str, function(err, res) {
if...
Getting the max value of an enum
...m MyEnum
{
ValueOne,
ValueTwo
}
VB:
Public Function GetMaxValue _
(Of TEnum As {IComparable, IConvertible, IFormattable})() As TEnum
Dim type = GetType(TEnum)
If Not type.IsSubclassOf(GetType([Enum])) Then _
Throw New InvalidCastException _
("Cannot cast ...
void in C# generics?
...nctions need to return null, but if it unifies your code, it should be a small price to pay.
This inability to use void as a return type is at least partially responsible for a split between the Func<...> and Action<...> families of generic delegates: had it been possible to return void...
What is a “context bound” in Scala?
... Iterable[T]) =
xs zip ys map { t => implicitly[Numeric[T]].times(t._1, t._2) }
or
def **[T : Numeric](xs: Iterable[T], ys: Iterable[T]) =
xs zip ys map { t => context[T]().times(t._1, t._2) }
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Unicode (UTF-8) reading and writing to files in Python
...le you have "\xc3" in it. Those are 4 bytes and in your code you read them all. You can see this when you display them:
>>> open('f2').read()
'Capit\\xc3\\xa1n\n'
You can see that the backslash is escaped by a backslash. So you have four bytes in your string: "\", "x", "c" and "3".
Edit...
What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
...fNeeded and layoutSubviews methods? And an example implementation where all three would be used. Thanks.
2 Answers
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Why, Fatal error: Class 'PHPUnit_Framework_TestCase' not found in …?
...g the most recent PHPUnit version on their PHP 7 builds. My fix was to manually download an old phar and use that instead.
– DisgruntledGoat
Mar 13 '17 at 17:12
2
...
Python base64 data decode
...\x00\x00D\xc8\x001\x00\x00\x00\x00'
What problem are you having, specifically?
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How can I get `find` to ignore .svn directories?
...you look at ack ? It's a source-code aware find, and as such will automatically ignore many file types, including source code repository info such as the above.
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What is the difference between a “function” and a “procedure”?
Generally speaking, we all hear about the functions or procedures in programming languages. However, I just found out that I use these terms almost interchangeably (which is probably very wrong).
...