For JavaScript in most browsers*, you can read a character from a String by treating it like an Array.However, in all the browsers I\'ve tried (IE9, Chrome, Firefox), you can\'t write to it like an Ar
One of the reasons I love Python is the expressive power / reduced programming effort provided by tuples, lists, sets and dictionaries.Once you understand list comprehensions and a few of the basic pa
The blog post Uninitialized variables points out that uninitialized class variables, local variables and constants cause an exce开发者_运维问答ption (after going through method_missing or their equiva
The C# compiler requires that whenever a custom type defines operator ==, it must also define != (see here).
As I only now noticed after commenting on this answer, slices in Python 3 return shallow copies of whatever they\'re slicing rather than views. Why is this still the case? Even leaving aside numpy\'s
Does anybody here have good examples where types as first-class objects come in hand? I guess it helps to straightforwardly implement some math concep开发者_开发百科ts, indeed that is the kind of exa
I\'m curious how universal the language paradigm is of allowing plain if (x) ... to check for nonzero value (on an integer variable, at least)?
In the Reference of HttpRequest.HttpMethod of .NET Framework, request type is declared with System.String type.
In Python one can do: foo = {} assert foo.get(\'bar\', \'开发者_运维技巧baz\') == \'baz\' In PHP one can go for a trinary operator as in:
Consider this simple Scala class: class A(val d: Int) Is there a difference in Scala (either in behaviour or generated bytecode) between
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