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A semantics for Bash scripts?
...are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the state of the program -- is it a key-value assignment of strings to variable names; is there more than that, e.g. the stack? Is there a heap? And so on.
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Why doesn't Dictionary have AddRange?
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I've got some solution:
Dictionary<string, string> mainDic = new Dictionary<string, string>() {
{ "Key1", "Value1" },
{ "Key2", "Value2.1" },
};
Dictionary<string, string> additionalDic= new Dictionary<string, string>() {
{ "...
How can I determine if a String is non-null and not only whitespace in Groovy?
Groovy adds the isAllWhitespace() method to Strings, which is great, but there doesn't seem to be a good way of determining if a String has something other than just white space in it.
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What is Func, how and when is it used
...pe to reference a method that returns some value of T. E.g.
public static string GetMessage() { return "Hello world"; }
may be referenced like this
Func<string> f = GetMessage;
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im...
Replace only some groups with Regex
...eed to identify them or not. That way you can use them in your replacement string. For example:
var pattern = @"(-)(\d+)(-)";
var replaced = Regex.Replace(text, pattern, "$1AA$3");
or using a MatchEvaluator:
var replaced = Regex.Replace(text, pattern, m => m.Groups[1].Value + "AA" + m.Groups...
Why aren't variables declared in “try” in scope in “catch” or “finally”?
...hrow new ArgumentException("some operation that throws an exception");
string s = "blah";
}
catch (e as ArgumentException)
{
Console.Out.WriteLine(s);
}
This clearly is a problem - when you reach the exception handler, s will not have been declared. Given that catches are meant to handl...
Defining a function with multiple implicit arguments in Scala
... in one parameter list, and this list must be the last one.
def myfun(arg:String)(implicit p1: String, p2:Int)={}
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Printing Java Collections Nicely (toString Doesn't Return Pretty Output)
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You could convert it to an array and then print that out with Arrays.toString(Object[]):
System.out.println(Arrays.toString(stack.toArray()));
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Large Object Heap Fragmentation
... the LOH to preallocate a few objects (such as the array used for interned strings). Some of these are less than 85000 bytes and thus would not normally be allocated on the LOH.
It is an implementation detail, but I assume the reason for this is to avoid unnecessary garbage collection of instances...
Sql Server string to date conversion
I want to convert a string like this:
14 Answers
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