How can TypeScript leverage the power of JavaScript libraries?

As a newcomer to TypeScript, I apologize if this question seems simplistic. My goal is to incorporate JavaScript libraries into a .ts file while utilizing node.js for running my program via the console.

In my previous experience with JavaScript, I utilized the following line of code:

const example = require('lodash'); // example

Following that, I inputted the subsequent command in my terminal:

npm i loadsh

Now, I have an example.ts file and intend to integrate the same library into it. Can someone offer guidance on how to achieve this?

javascripttypescriptimportrequire

Answer №1

Many npm libraries, like lodash, come with TypeScript definitions created by the development team. These types for JavaScript libraries are typically available as a separate package that needs to be installed separately.

npm install --save-dev @types/lodash

Answer №2

To set up your TypeScript configuration, make sure to create a TSConfig file by visiting https://www.typescriptlang.org/tsconfig

You can easily generate one using the command npx tsc --init

If you prefer running the code without the need for building it, consider utilizing ts-node instead of node

In a tsx file, you can import libraries like lodash with import {map} from lodash;

Remember to include "allowJs": true in your tsconfig settings.

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