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setup prettier / eslint for create-react-app typescript

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1. npm i -D prettier 

2. create .prettierrc.json

{
"trailingComma": "all",
"tabWidth": 2,
"singleQuote": true,
"jsxBracketSameLine": true,
  "semi": false

}

3. npm i -D eslint-config-prettier

4. in package.json, add this: "eslintConfig": {
"extends": [
"react-app",
"react-app/jest",
"prettier"
]
},

5. install extension in VS Code Prettier extension




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