Having difficulty leveraging npm modules in TypeScript

I recently switched from Babel to Typescript and am facing difficulties with importing a module from node_modules. The generated .js build does not include the code from the module I'm trying to import, specifically browser-cookies.

I used yarn to install the package: yarn add browser-cookies. Then, in my attempt to import it into main.ts, I wrote:

const cookies = require('browser-cookies');

(function() {
  document.forms['number-generator'].addEventListener('submit', (ev) => {
    ev.preventDefault();

    if(!cookies.get('ab')) {
      cookies.set('ab', 'true', { expires: 1 });
    }
  })
})();

Here is an excerpt from my package.json file:

{
  "name": "lucky-lotto-lander",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "scripts": {
    "build": "tsc src/app.ts --outFile dist/app.js --module amd --watch"
  },
  "dependencies": {
    "@types/node": "^8.0.53",
    "browser-cookies": "^1.1.0",
    "copyfiles": "^1.2.0"
  }
}

However, the resulting main.js build does not have the necessary browser-cookies code bundled. How can I address this issue?

Answer №1

While TypeScript itself doesn't handle bundling (unlike Babel, which solely transpiles code), incorporating a module bundler such as Webpack is crucial for combining all the pieces into one cohesive bundle.

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