如何获得lodash类型的信息以在VSCode中工作?

时间:2019-05-22 00:33:13

标签: typescript visual-studio-code

我在VSCode中收到以下.ts文件(红线)错误:

src \ lib \ hi.ts

import * as _ from 'lodash';

function testLodash(): void {

  function square(n: number) {
    return n * n;
  }

  return _.map([4, 8], square);
}

错误

Property 'map' does not exist on type 'typeof import("lodash")'.ts(2339)

对于任何常用的lodash函数,我都会遇到相同的错误。通过Lodash调用时,Intellisense仅给我提供_.类。 我猜想VSCode找不到我的类型定义,但我看不到为什么。

如果我将导入更改为:

import 'lodash';

我得到了预期的功能,但错误消失了,但是又出现了新的错误:

'_' refers to a UMD global, but the current file is a module. Consider adding an import instead.ts(2686)

应用建议的QuickFix将以下内容添加到导入中:

import _ from 'lodash';

但是随后我又得到了原始错误。

那么我需要做些什么才能使它起作用?

以下是详细信息:

package.json

{
  ...
  "dependencies": {
    ...
    "lodash": "^4.17.11",
    ...
  },
  "devDependencies": {
    ...
    "@types/lodash": "^4.14.130",
    ...
    "typescript": "^3.4.5"
  }
}

tsconfig.json

{
  "compilerOptions": {
     "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "allowJs": true,                       /* Allow javascript files to be compiled. */
    "outDir": "./dist/",                        /* Redirect output structure to the directory. */
    "strict": true,                           /* Enable all strict type-checking options. */
    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
  }
}

VSCode设置

没有非默认的TS设置

TS版本

版本3.4.5

VSCode版本

Version: 1.34.0 (user setup)
Commit: a622c65b2c713c890fcf4fbf07cf34049d5fe758
Date: 2019-05-15T21:59:37.030Z
Electron: 3.1.8
Chrome: 66.0.3359.181
Node.js: 10.2.0
V8: 6.6.346.32
OS: Windows_NT x64 10.0.17134

已安装的扩展程序

alanz.vscode-hie-server
alefragnani.Bookmarks
andyyaldoo.vscode-json
christian-kohler.path-intellisense
daiyy.quick-html-previewer
eamodio.gitlens
Edka.haskutil
esbenp.prettier-vscode
fabiospampinato.vscode-todo-plus
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hoovercj.haskell-linter
jcanero.hoogle-vscode
justusadam.language-haskell
karigari.chat
mrmlnc.vscode-duplicate
ms-vscode.vscode-typescript-tslint-plugin
ms-vsliveshare.vsliveshare
ms-vsliveshare.vsliveshare-audio
ms-vsliveshare.vsliveshare-pack
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WakaTime.vscode-wakatime

1 个答案:

答案 0 :(得分:1)

我有同样的问题,我通过这种方式解决了这个问题:

const _ = require('lodash');