TypeScript 1.3 受保护的 元组类型 TypeScript 1.3 受保护的 类里面新的protected 修饰符作用与其它语言如C++，C#和Java中的一样。一个类的protected 成员只在这个类的子类中可见： class Thing { protected doSomething () { ...

TypeScript 1.5 ES6 模块 导出声明 重新导出 默认导出项 无导入加载 声明与赋值的解构 解构 赋值 namespace (命名空间) 关键字 let 和 const 的支持 Const 块级作用域 for…of 的支持 例子 装饰器 例子 计算属性 指出 UMD 和 System 模块输出 Unicode...

TypeScript 1.7 支持 async/await 编译到 ES6 (Node v4+) 例子 支持同时使用 —target ES6 和 —module 例子 this 类型 ES7 幂运算符 举例 改进对象字面量解构的检查 举例 装饰器 (decorators) 支持的编译目标版本增加 ES3 TypeScript 1....

TypeScript 1.7 TypeScript 1.7 async/await support in ES6 targets (Node v4+) Support for –target ES6 with –module this-typing ES7 exponentiation operator Improved checking ...

TypeScript 2.0 TypeScript 2.0 Null- and undefined-aware types Control flow based type analysis Tagged union types The never type Read-only properties and index signatures ...

TypeScript 2.1 TypeScript 2.1 keyof and Lookup Types Mapped Types Partial, Readonly, Record, and Pick Object Spread and Rest Downlevel Async Functions Support for externa...

TypeScript 2.8 TypeScript 2.8 Conditional Types Improved control over mapped type modifiers Improved keyof with intersection types Better handling for namespace patterns in...

TypeScript 2.9 TypeScript 2.9 Support number and symbol named properties with keyof and mapped types Generic type arguments in JSX elements Generic type arguments in generic...

TypeScript 1.4 Union types Overview Stricter Generics Better Type Inference let declarations const declarations Template strings Type Guards Type Aliases const enum (compl...

TypeScript 2.7 Constant-named properties Example Example unique symbol Example Example Strict Class Initialization Definite Assignment Assertions Example Fixed Length Tup...