language-features

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What do we mean by ? OR ???

Someone tell me the difference and example why we use these. I know its for N开发者_如何学GoULL values.x ? a : b means if (x == true) then a else b[详细]

2023-01-27 18:13 分类：问答
Why is there no equivalent in C# to Ada generic parameters?

Please note that I am not talking about Generic Type parameters. For example in Ada I can write a package that needs to be initialized using a value instead of a type. e.g.[详细]

2023-01-26 18:46 分类：问答
What programming languages have access to the WinAPI?

I\'m looking to start a new programming language and for my first task I want to overlay some text on another applications window, 开发者_JS百科similar to the guy in this post:[详细]

2023-01-25 14:03 分类：问答
How to parse a number with a decimal regardless of the language setting

I am programming in C#.NET. I have a string that contains a number with a period as a decimal. How can I correctly parse that into a a double regardless of the localization/language settings. The stri[详细]

2023-01-25 07:34 分类：问答
@result_list = grep { test($_) } @unfiltered_list in other languages?

One of the features I love in Perl is the LISP-inspired (?) abili开发者_如何学Pythonty to filter content out of a list of things with the simple syntax[详细]

2023-01-25 04:15 分类：问答
Extending sealed intrinsic datatypes using CompilerServices.Extensions-No way to reuse?

I defined the following extension of the Date? data type \'Nullable Date Extensions <System.Runtime.CompilerServices.Extension()> _[详细]

2023-01-24 11:16 分类：问答
Should C# have a forone construct? (or what's the cleanest way to handle zero or one case)

When dealing with an enumeration containing none, one or many of an item the foreach loop makes it easy to iterate over them and LINQ Select makes it easy to project items from the enumeration.[详细]

2023-01-23 16:21 分类：问答
Would templates (or other technology) support the following construct?

This is kind of a follow-up from my other question. When I first heard about generics, it was before the release of Delphi 2009 (Where they introduced it first). I know it was supported in .Net befor[详细]

2023-01-21 10:54 分类：问答
Collection Initialization Syntax, what for?

We just can use function like public static List<T> New<T>(params T[] items) { return new List<T>(items);[详细]

2023-01-21 07:44 分类：问答
Is Reflection the best way to determine the presense/absence of property/method on a dynamic object?

I have a number of data access methods that accept a dynamic object parameter (i.e., dynamic foo). I can\'t use an interface to define to type the input parameter due to existing code. I am setting pr[详细]

2023-01-20 20:51 分类：问答