Running into the TypeScript error "Type undefined is not assignable to type string"? It's a frequent error when variables might be undefined but functions demand strings. Fix it with string concatenation, templates, or assertion functions.
Mutation testing evaluates the quality of your test suite by introducing small changes (mutations) to your code and checking if your tests can detect them. This tutorial will guide you through understanding mutation testing, setting up Stryker for TypeScript, and using it to enhance your test suite and code quality.
Learn how to optimize TypeScript configurations for lean compilation and type checking. Use rootDir and exclude patterns to manage configuration files without unnecessary compilation.
Generators help fetch and process data from APIs more granular, improving code modularity and user-friendliness. This tutorial teaches you how to use TypeScript generators for cleaner programming using a real-world example.
Learn about iterators and generators in TypeScript. Understand how to use for-of loops, iterator protocol, iterable protocol, and async generators. See examples and practical applications.