How to provide global TypeScript classes via WebPack bundle in JS

Question

I am currently working on TypeScript. I want to replace JS with TS, but I have a lot of JS-Files, so that I only want to create new classes in TS and want to use these in my

Answer 1

You need to make use of the expose-loader in order to make your module available through the global scope.

---

// File: webpack.config.js
const path = require('path')

module.exports = {
  context: path.resolve('src'),
  entry: './main.ts',
  module: {
    rules: [
      {
        test: require.resolve('./src/main.ts'),
        use: [{
          loader: 'expose-loader',
          options: 'Library'
        }, {
          loader: 'ts-loader'
        }],
        exclude: /node_modules/
      }
    ]
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js'
  }
}

---

// File: main.ts
export class Car {
    seats: number;
    passengers: string[];

    add(passenger: string) {
        if(this.passengers.indexOf(passenger) === -1) {
            this.passengers.push(passenger);
        }
    }
}

---

// File: main.js
var car = new Library.Car()
car.seats = 5
car.add('Pete')

---

Make sure the code calling the module is included after the module bundle.