Private fields in TypeScript can be declared with either "private" or "#". The private keyword only enforces privacy at design time through the TypeScript compiler, while the "#" syntax creates Private Elements that are also protected from outside access at runtime. Private Elements provide stronger encapsulation because their fields remain completely hidden from anything outside the class.
TypeScript 5.3 introduces switch-true narrowing, a feature that simplifies complex if/else chains. By using switch-true narrowing, conditions can be expressed more declaratively, improving code readability and type safety.
Node.js introduces `--experimental-strip-types` flag to run TypeScript files directly without transpiling, speeding up development. This sounds great but it currently leads to compatibility issues and lack of TypeScript features. The community is discussing concerns and potential solutions for the future.
TypeScript compiler configs are crucial for building apps. Key settings include file locations, syntax specification, module formats, and type checking capabilities. Understanding these configs enhances development. This posts shows you how to build the perfect TypeScript compiler configuration for your project and how configs from frameworks can be extended for ease.
ECMAScript Modules (ESM) enable the importing and exporting of code and are supported in modern web browsers, Deno, Bun, and Node.js. It's recommended to use ESM as major frameworks are already embracing it. Let this tutorial guide you through the process.