Create TypeScript codes with ESLint + Prettier + Nodemon for auto reload

script.sh

# install ts
npm i typescript --save-dev
npx tsc --init

# update ts config
sed -i '' -e 's/"target": "es2016"/"target": "ES2020"/' tsconfig.json
sed -i '' -e 's/\/\/ "noImplicitAny": true/"noImplicitAny": true/' tsconfig.json
sed -i '' -e 's/\/\/ "strictNullChecks": true/"strictNullChecks": true/' tsconfig.json 

# install prettier
npm install --save-dev prettier

# add prettier config
cat << 'EOF' > .prettierrc
{
  "semi": true,
  "singleQuote": false,
}
EOF

# eslint
npm install eslint @typescript-eslint/parser @typescript-eslint/eslint-plugin eslint-config-prettier --save-dev

# add config
cat << 'EOF' > .eslintrc
{
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": "latest",
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint"],
  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "prettier"],
  "env": {
    "browser": true,
    "es2021": true
  }
}
EOF

# setup nodemon
npm install --save-dev ts-node nodemon
cat << 'EOF' > nodemon.json
{
  "watch": ["src"],
  "ext": "ts,json",
  "ignore": ["src/**/*.spec.ts"],
  "exec": "ts-node ./src/index.ts"
}
EOF

# add the entry ts file
mkdir src
cat << 'EOF' > src/index.ts
console.log('TypeScript is running and being watched');
EOF

# set git
git init
cat << 'EOF' > ./.gitignore
.idea
node_modules
EOF