Running "tsc" is checking one file in "node_modules"

user_7776992 0
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When running tsc on a react-native project, I'm getting a type error in one of the node_modules libraries:

node_modules/react-native-swiper-flatlist/src/components/SwiperFlatList/SwiperFlatList.tsx:79:17 - error TS7031: Binding element '_index' implicitly has an 'any' type.

79       ({ index: _index, prevIndex: _prevIndex }) => {

tsc shouldn't be checking node_modules, as it's explicetely ignored in the tsconfig.json:

{
  "extends": "expo/tsconfig.base",
  "include": ["src", "storybook", "types"],
  "exclude": ["node_modules", "babel.config.js"],

  "compilerOptions": {
    "allowJs": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "incremental": true,
    "isolatedModules": true,
    "jsx": "react",
    "lib": ["es6"],
    "moduleResolution": "node",
    "noEmit": true,
    "strict": true,
    "strictNullChecks": true,
    "target": "esnext",
    "module": "esnext",
    "baseUrl": ".",
    "paths": {
      "~*": ["./src/*"]
    }
  }
}

I saw a related post on ignoring node_modules, and it suggested adding "skipLibCheck": true to the tsconfig.json, but that didn't change anything.

I'm importing react-native-swiper-flatlist in one place the following way:

import { SwiperFlatList } from "react-native-swiper-flatlist";

Using typescript v4.7.3.

Any idea why tsc would be picking up this one specific file, and any suggestions on how to exclude it from being checked?

react-typescript react-native typescript
1 Answers

Looking at the docs for exclude, it doesn't guarantee that the files will be excluded, it just changes the discovery search pattern. If you include the files via import into your main codebase, the files will still be included.

If you want to use that file, you will just need to turn off the implicit any check via the tsconfig flag:

{
  "extends": "expo/tsconfig.base",
  "include": ["src", "storybook", "types"],
  "exclude": ["node_modules", "babel.config.js"],

  "compilerOptions": {
       //... your other options
       "noImplicitAny": false
  }
}
user_119087580
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