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Type Guards
Type Guards Type Guards A common pattern in JavaScript is to use typeof or instanceof to examine the type of an expression at runtime. TypeScript now understands these condit... -
Type descriptors
Type descriptors Set Descriptor Object Shape Descriptor Base Scalar Type Descriptor Scalar Type Descriptor Tuple Type Descriptor Named Tuple Type Descriptor Array Type... -
Type Casting
Type Casting Defining a Class Hierarchy for Type Casting Checking Type Downcasting Type Casting for Any and AnyObject Type Casting Type Casting Type casting is a way to ... -
Type Compatibility
A Note on Soundness Starting out Comparing two functions Function Parameter Bivariance Optional Parameters and Rest Parameters Functions with overloads Enums Classes Privat... -
CREATE TYPE
CREATE TYPE 功能描述 注意事项 语法格式 参数说明 示例 相关链接 CREATE TYPE 功能描述 在当前数据库中定义一种新的数据类型。定义数据类型的用户将成为该数据类型的拥有者。类型只适用于行存表 有四种形式的CREATE TYPE，分别为：复合类型、基本类型、shell类型和枚举类型。 复合类型 复合类型由一... -
DROP TYPE
DROP TYPE 概要 描述 参数 示例 兼容性 另见 DROP TYPE 删除数据类型。 概要 DROP TYPE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] 描述 DROP TYPE将删除用户定义的数据类型。 只有类型的所有者才能将其删除。 ... -
Type Inference
Best common type Contextual Typing In TypeScript, there are several places where type inference is used to provide type information when there is no explicit type annotation. Fo... -
Type Compatibility
A Note on Soundness Starting out Comparing two functions Function Parameter Bivariance Optional Parameters and Rest Parameters Functions with overloads Enums Classes Privat... -
Type classes
Type classes Type classes TODO:… -
Type Synonym
Type Synonym Type Synonym Type synonym can be used to simplify a long type name to make code more readable. >: i String type String = [ Char ] Or you can define yo...