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Easy start of a Typescript/React project (w/ ESlint and Prettier)

viniciusmdias profile image Vinicius Dias Updated on ・2 min read

In this super fast tutorial, I'll teach you to initialize a Typescript project in React.

Create project

  • Create project with create-react-app:
yarn create react-app *your-application-name* --template=typescript


  • Add ESlint to the project on the development mode:
 yarn add eslint -D
  • Start a new eslint file:
yarn eslint --init
  • Choose these answers for the above command:
1. To check syntax, find problems, and enforce code style
2. JavaScript modules (import/export)
3. React
4. Yes
5. Browser
6. Use a popular style guide
7. Airbnb
9. No
  • Install with Yarn the list of required dependencies that appear after denying intall with npm in the last choice of above command:
yarn add eslint-plugin-react@^7.20.0 @typescript-eslint/eslint-plugin@latest eslint-config-airbnb@latest eslint@^5.16.0 || ^6.8.0 || ^7.2.0 eslint-plugin-import@^2.21.2 eslint-plugin-jsx-a11y@^6.3.0 eslint-plugin-react-hooks@^4 || ^3 || ^2.3.0 || ^1.7.0 @typescript-eslint/parser@latest -D

be careful the dependencies can change.

  • Install ESlint in the version 6.6.0 to avoid incompatibility problems with the react-scripts library:
yarn add eslint@6.6.0 -D
  • Create a file .eslintignore in the root of the project.

.eslintignore :

  • Add the following library in the development mode, to import typescript by default:
yarn add eslint-import-resolver-typescript -D 
  • Add some configurations in file eslintrc.json.

eslintrc.json :

  "extends": [
  "plugins": [
  "rules": {
    "react-hooks/rules-of-hooks": "error",
    "react-hooks/exhaustive-deps": "warn",
    "react/jsx-filename-extension": [
        "extensions": [
    "import/prefer-default-export": "off",
    "import/extensions": [
        "ts": "never",
        "tsx": "never",
  "settings": {
    "import/resolver": {
      "typescript": {}

... represents the code already in the file.


  • Add Prettier to the project on the development mode:
yarn add prettier eslint-config-prettier eslint-plugin-prettier -D
  • Integrate the prettier with eslint by adding a few more settings to the file eslintrc.json.

eslintrc.json :

  "extends": [
  "plugins": [
  "rules": {
    "prettier/prettier": "error",
  • Create a file prettier.config.js in the root of the project.

prettier.config.js :

module.exports = {
    singleQuote: true,
    trailingComma: 'all',
    allowParens: 'avoid',

Bonus - EditorConfig

  • Right-click on the project's root directory, generate the Editor config and change the last two fields to true and add the field end_of_line = lf field.


root = true
indent_style = space
indent_size = 2
charset = utf-8
trim_trailing_whitespace = true
insert_final_newline = true
end_of_line = lf
  • Start the project in the development mode:
yarn start

That's it. Both configuration files for Prettier and ESLint can be adjusted to your needs. If you need to add rules, you can do it with both files.


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Vinicius Dias


I'm always learning different things and I consider myself a very curious guy. I feel that it keeps me motivated and creative to solve problems. Feel free to add me and exchange networking!


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