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How do you find out the type of an object (in Swift)?
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If you have a String that is passed as type Any then type(of:) will output Any, not String.
– ScottyBlades
Jun 17 '18 at 21:56
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How using try catch for exception handling is best practice
...e
try
{
...
}
catch(Exception ex)
{
throw new ApplicationException(string.Format("I cannot write the file {0} to {1}", fileName, directoryName), ex);
}
There is a lot to do with exception handling (Custom Exceptions) but thoses rules I try to keep in mind are enough for the simple applicat...
How to write a test which expects an Error to be thrown in Jasmine?
...ah).toThrow(). No arguments means check to see that it throws at all. No string matching required. See also: stackoverflow.com/a/9525172/1804678
– Jess
Nov 27 '13 at 14:32
1
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...e concepts that are important throughout this phase.
A token is simply a string of characters that is treated as a unit.
Tokens are separated by token delimiters. The standard token delimiters are <space> <tab> ; , = <0x0B> <0x0C> and <0xFF>
Consecutive token delimite...
Parse DateTime string in JavaScript
Does anyone know how to parse date string in required format dd.mm.yyyy ?
9 Answers
9...
How do RVM and rbenv actually work?
...link to rbenv-gemset (the link will still get you there. It's just another extra step from a redirect).
– Jeffrey 'jf' Lim
Apr 15 '15 at 20:47
add a comment
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The difference between sys.stdout.write and print?
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print first converts the object to a string (if it is not already a string). It will also put a space before the object if it is not the start of a line and a newline character at the end.
When using stdout, you need to convert the object to a string yourself (...
What are the differences between a pointer variable and a reference variable in C++?
..., the lifetime of that object becomes the lifetime of the reference.
std::string s1 = "123";
std::string s2 = "456";
std::string s3_copy = s1 + s2;
const std::string& s3_reference = s1 + s2;
In this example s3_copy copies the temporary object that is a result of the concatenation. Whereas s3...
Why does += behave unexpectedly on lists?
...ts += changes the object's value, whereas for immutable types like tuples, strings and integers a new object is returned instead (a += b becomes equivalent to a = a + b).
For types that support both __iadd__ and __add__ you therefore have to be careful which one you use. a += b will call __iadd__ a...
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...