在node_module文件夹下写一个打字稿.d.ts类型定义

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问题描述

我需要为外部(npm)库编写一个.d.ts文件.我正在使用打字稿3.

I need to write a .d.ts file for an external (npm) library. I am using typescript 3.

我需要的进口商品是:

import fakedb from 'fake-indexeddb'; //sorted
// second import I would like:
import dbKeyRange from 'fake-indexeddb/lib/FDBKeyRange'

来自types/fake-indexeddb.d.ts:

from types/fake-indexeddb.d.ts:

export = index;
declare const index: IDBFactory;

如何编写要从库中第二次导入的文件(fake-indexeddb/lib/FDBKeyRange-IDBKeyRange)?

How do I write a file for the second import from the library I would like(fake-indexeddb/lib/FDBKeyRange - an IDBKeyRange)?

修改从逻辑上讲，Juraj Kocan的答案是我必须在.d.ts文件中输入的内容，但问题是我必须给该文件起什么名字，以便调试器和编译器在我编写import dbKeyRange from 'fake-indexeddb/lib/FDBKeyRange'时找到该文件-很明显如何找到 types/fake-indexeddb.d.ts 文件.

Editwhile the answer by Juraj Kocan is logically what i have to put in the .d.ts file, the question is what do I have to name the file so the debugger and transpiler find the file when I write import dbKeyRange from 'fake-indexeddb/lib/FDBKeyRange' - it is obvious how it finds the types/fake-indexeddb.d.ts file.

推荐答案

将全名添加到声明中

declare module 'fake-indexeddb/lib/FDBKeyRange' {
  class dbKeyRange {}
  export default dbKeyRange
}

编辑

有一些声明规则.在tsconfig中添加类型根目录

there are some rules for declarations.add type rootes in tsconfig

 "typeRoots": [
  "./node_modules/@types",
  "./whateveryouwant/types"
],

或其他路径都没有关系.只是必须在ts config中定义然后添加带有模块名称的文件夹.在此文件夹中添加index.d.ts

or other path it does not matter. Just has to be defined in ts configthen add folder with name of your module.in this folder add index.d.ts

--src
  --types
    --fake-indexeddb
      --index.d.ts

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