从文件A中导出接口,例如export interface Employee {}。 将文件B中的接口导入为import { Employee } from './another-file'。 使用文件B中的界面。 下面是从名为another-file.ts的文件中导出接口的示例。 another-file.ts // 👇️ named exportexportinterfaceEmployee {id:number;name:string;salary:number;...
可以使用命名导入作为import {A, B} from './another-file'来导入导出的类型。 我们可以在单个文件中拥有任意数量的命名导出。 这是从名为another-file.ts的文件中导出多种类型的示例。 another-file.ts // 👇️ named exportexporttypeEmployee= {id:number;salary:number; };// 👇️ named exportexpo...
exporttype BasicPrimitive = number | string | boolean;exportfunctiondoStuff(value: BasicPrimitive) {if (Math.random() < 0.5) {return Symbal(); }return value;}复制代码如上函数doStuff的返回值在4.2以下版本将被推断为number | string | boolean | symbol，在4.2中将会被推断为BasicPrimitive | ...
exporttype BasicPrimitive=number|string|boolean;exportfunctiondoStuff(value:BasicPrimitive){letx=value;returnx;} 如果我们在Visual Studio、Visual Studio Code 或 TypeScript Playground 之类的编辑器中将鼠标悬停在x上时,我们将得到一个快速信息面板,显示其类型为BasicPrimitive。同样,如果我们得到这个文件的声明文件...
namespace JSX { export type ElementType = // All the valid lowercase tags keyof IntrinsicAttributes // Function components (props: any) => Element // Class components new (props: any) => ElementClass; export interface IntrinsictAttributes extends /*...*/ {} export type Element = /*...*...
{command:`_typescript.organizeImports`arguments:[// The "skipDestructiveCodeActions" argument is supported from Typescript 4.4+[string]|[string,{skipDestructiveCodeActions?:boolean}],]} Response: void Rename File Request: {command:`_typescript.applyRenameFile`arguments:[{sourceUri:string;targetUri:...
To reference a type from another module, you can instead directly qualify the import. Copy - import { someValue, SomeType } from "some-module"; + import { someValue } from "some-module"; /** - * @type {SomeType} + * @type {import("some-module").SomeType} */ export const my...
Populate the configuration file depending on the ESLint version you are using: ESLint version 9 and later ESLint version 8 and earlier // @ts-check import eslint from '@eslint/js'; import tseslint from 'typescript-eslint'; export default tseslint.config( eslint.configs.recommended, ts...
exportfunctionsayHello(message: string){console.log("Person component says", message); } Typescript,最上層匯入或匯出陳述式的任何檔案會被視為模組,因此只將宣告匯出以隱含方式,則此函式會定義所有 person.ts 是模組。 修改後,一定很滿意,TypeScript 和兩個新檔案、 person....
Populate the configuration file depending on the ESLint version you are using: ESLint version 9 and later ESLint version 8 and earlier // @ts-check import eslint from '@eslint/js'; import tseslint from 'typescript-eslint'; export default tseslint.config( eslint.configs.recommended, ts...