Creates a new TypeScript project ready to use with Node.js

new-ts-project.sh

#!/bin/bash
#
# Creates a new TypeScript project ready to use with Node.js
set -euo pipefail

if [[ ! -f $(which npm) ]] || [[ ! -f $(which yarn) ]]; then
    echo "Please, install npm and yarn before continuing"
    echo "See https://docs.npmjs.com/downloading-and-installing-node-js-and-npm"
    echo "See https://yarnpkg.com/"
    exit
fi

yarn init -y
yarn add typescript ts-node ts-loader webpack webpack-cli @types/node -D
./node_modules/.bin/tsc --init
mkdir src && mkdir build
sed -i.bak 's/\/\/ "outDir": "\.\/"/"outDir": "\.\/build\/"/' tsconfig.json
jq '. += {"scripts": {"start": "npx ts-node src","build": "npx tsc", "dist": "webpack --mode production"}}' < package.json > package.json.tmp
mv package.json.tmp package.json
cat<<EOF>>webpack.config.js
const path = require('path');

module.exports = {
  entry: './src/index.ts',
  module: {
    rules: [
      {
        test: /\.ts?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist'),
  }
};
EOF
echo "=== Done! ==="
echo "Now you can add TS files to src/"
echo "Then, you can run:"
# Running the code
echo "$ yarn run start"
# Building a JS file
echo "$ yarn run build"
# Building a bundle JS file
echo "$ yarn run dist"