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What's the difference between “groups” and “captures” in .NET regular expressions?
...rp> Regex.Match("3:10pm", @"((\d)+):((\d)+)(am|pm)").
> Groups.Cast<Group>().
> Zip(Enumerable.Range(0, int.MaxValue), (g, n) => "[" + n + "] " + g);
{ "[0] 3:10pm", "[1] 3", "[2] 3", "[3] 10", "[4] 0", "[5] pm" }
So where's the 1?
Since there are multiple digits th...
Find difference between timestamps in seconds in PostgreSQL
...
SELECT (cast(timestamp_1 as bigint) - cast(timestamp_2 as bigint)) FROM table;
In case if someone is having an issue using extract.
share
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Int to Char in C#
...(char)49; string s = "1two3"; Console.WriteLine(c == s[0]); Using this cast is perfectly fine. Your explanation does not provide a valid example of it not working. Furthermore, Console.WriteLine((char)49 == 1); is false which essentially makes your comment baseless.
– Travi...
How to sort an array of associative arrays by value of a given key in PHP?
...es from the comparison function, such as float, will result in an internal cast to integer of the callback's return value. So values such as 0.99 and 0.1 will both be cast to an integer value of 0, which will compare such values as equal.
This is an important trap to bear in mind when using usort ...
Create instance of generic type in Java?
...error, while new Foo<Bar>(){}; doesn't? (Exception: "Class cannot be cast to ParameterizedType")
– Tim Kuipers
Dec 22 '13 at 14:52
...
GetType() can lie?
...eLine("NiceFoo really is a '{0}'", typeof(NiceFoo));
Console.ReadLine();
Cast the instance to an object and call the GetType() Method
IFoo badFoo = new BadFoo();
IFoo niceFoo = new NiceFoo();
Console.WriteLine("BadFoo says he's a '{0}'", badFoo.GetType().ToString());
Console.WriteLine("NiceFoo ...
Java Constructor Inheritance
...oSomeStuff(){
// We know this.value is an Integer, so it's safe to cast.
doSomethingWithAnInteger((Integer)this.value);
}
}
// Client code:
Sub s = new Sub(Long.valueOf(666L)): // Devilish invocation of Super constructor!
s.doSomeStuff(); // throws ClassCastException
Or even s...
Best way to read a large file into a byte array in C#?
...
I would make sure to wrap the long to int cast with the checked construct like this: checked((int)fs.Length)
– tzup
Jun 20 '14 at 9:09
...
getApplication() vs. getApplicationContext()
...istered in the Manifest, you should never call getApplicationContext() and cast it to your application, because it may not be the application instance (which you obviously experienced with the test framework).
Why does getApplicationContext() exist in the first place ?
getApplication() is only ava...
How do I check if a string contains another string in Swift?
... other two involve explicitly using an NSString and the final one involves casting the String to an NSString
By bridging, you'd get:
var string = "hello Swift"
if string.bridgeToObjectiveC().containsString("Swift") {
println("YES")
}
By explicitly typing the string as an NSString, you'd get:...