TypeScript

Your TypeScript application uses relative imports. Every time you move a file, the imports break. You've configured path mapping, and now things break in an entirely new way.

Gatsby supports TypeScript out-the-box. Unfortunately, the official solution has several shortcomings which limit its usefulness. There is a better way.

Type guards let you provide TypeScript with more information about a variable's type. Type guards are especially useful when working with a variable which may be undefined.

TypeScript's strict type checking can cause problems when working with numeric environment variables. Here's a solution.

By default, a Node.js stream expects to operate on a Buffer or a Uint8Array. We can override this by telling the stream to use "object mode".

Faker is a useful JavaScript library for generating dummy data. For example, faker.random.words(3) generates a string containing three random words. But what if you want to generate an array of random words?

TypeScript doesn't always play nicely with object bracket notation.

The Node CLI supports a "require" flag, which allows you to preload a module when running Node.

Node isn't managed by npm. As such, there's no guarantee that running npm install -D @types/node will install the correct type definitions for your version of Node.

Use 'generics' when writing a TypeScript function which works with a variety of types.