types
Some basic error in double value calculation
I have a small question which is confusing me, I have a variable of type double named as RevisionRatio in which I am using this expression.[详细]
2023-04-13 06:23 分类:问答Type theory: type kinds
I\'ve read a lot of interesting things about type kinds, higher-kinded types and so on. By default Haskell supports two sorts of kind:[详细]
2023-04-13 05:29 分类:问答In Clojure, what is a good way to compare user input Strings with Longs?
In Clojure I am building a card game. Cards have a suit and a score. {:suit 1 :score 9} The cards are created using ranges, e.g. (range suitTotal), so the class of the values of :suit and :score is[详细]
2023-04-13 02:56 分类:问答Create custom number data type within range?
In A开发者_如何学编程da, you can define a custom data type such as this type Day_Of_Month is range 1 .. 31;[详细]
2023-04-13 02:04 分类:问答Why do generic type restrictions have to be redeclared on descendant types?
In C#, given a generic type such as this: interface IGenericType<T> where T : new() And a descendant ty开发者_开发百科pe, such as:[详细]
2023-04-12 22:13 分类:问答What is the difference between typeof and the is keyword?
What\'s the exact difference between the two? // When calling this method with GetByType<MyClass>()[详细]
2023-04-12 19:25 分类:问答Converting strings into another data type, Python
I have the string \"(0, 0, 0)\". I\'d like to be able to convert this to a tuple. The built in tuple function doesn\'t work for my purposes because it treats each character as an individual item. I wa[详细]
2023-04-12 18:37 分类:问答How can a SEL, defined to return id, represent a method that returns a double?
In Objective-C there is a type named SEL. It\'s defined like this: id (*SEL)(id self, SEL _cmd,...); but if we make a method whose return type i开发者_运维知识库s double, the id type is not good to[详细]
2023-04-12 17:21 分类:问答Immutable types in javascript
It seems to me that immu开发者_如何学Pythontable types are impossible in Javascript, or does anyone know of any tricks to create them? Is it a good or bad practice?[详细]
2023-04-12 16:56 分类:问答How to set value of composite variable field using dynamic SQL
Given this type: -- Just for testing purposes: CREATE TYPE testType as (name text) I can get the value of a field dynamically with this function:[详细]
2023-04-12 11:29 分类:问答