TypeScript 1.8 类型参数约束 例子 控制流错误分析 不可及的代码 例子 未使用的标签 例子 隐式返回 例子 Case 语句贯穿 例子 React里的函数组件 简化的 React props 类型管理 在模块中扩充全局或者模块作用域 例子 例子 字符串字面量类型 更好的联合/交叉类型接口 例子 使用 --o...

TypeScript 支持 NPM 包中的官方声明 推荐配置 开发工具 项目创建 编辑器支持 定义 Vue 组件 与 Options API 一起使用 注释返回类型 注释 Props 与 Composition API 一起使用 类型声明 ref 类型声明 reactive 类型声明 computed TypeScri...

Using TypeScript --no-check option Using external type definitions Compiler hint Triple-slash reference directive in JavaScript files X-TypeScript-Types custom header Custom ...

Using TypeScript --no-check option Using external type definitions Compiler hint Triple-slash reference directive in JavaScript files X-TypeScript-Types custom header Custom ...

Performance Improvements Better Module Visibility Rules Performance Improvements The 1.1 compiler is typically around 4x faster than any previous release. See this blog post f...

Type parameters as constraints Example Control flow analysis errors Unreachable code Example Unused labels Example Implicit returns Example Case clause fall-throughs Examp...

Support for Mix-in classes First some terminology Putting all of the above rules together in an example object type Support for new.target Example Better checking for null ...

Strict function types Example Note Cache tagged template objects in modules Example Localized diagnostics on the command line Example Suppress errors in .ts files using ’// ...

Conditional Types Example Distributive conditional types Example Example Example Type inference in conditional types Predefined conditional types Example Improved control ...

strictBindCallApply Caveats Generic spread expressions in object literals Generic object rest variables and parameters BigInt Caveats Non-unit types as union discriminants ...