A literal type is a type that represents exactly one value, e.g. one specific string or number. You can combine literal types with union types to model a finite set of valid values for a variable. In this lesson, we explore the all kinds of literal t…
If Typescript is the first language in which you've encountered generics, the concept can be quite difficult to understand. We skip the lecture in this lesson and dive straight into a real-world use-case that is guaranteed to help you understand the…
We usually think of types as something that can define a single layer of an object: with an interface we normally specify a list of a few properties and their respective types. If any one of those properties is another object we must refer again to i…
Some functions may have different return types depending on the types of the arguments with which they’re invoked. Using TypeScript’s function overloads, you can create an overload for each allowed combination of parameter and return types. This way,…
Typescript classes make traditional object oriented programming easier to read and write. In this lesson we learn about class syntax, what the constructor is and some interesting variable features. interface Opponent { health: number; alias: string;…
To using decorate, we can modifiy tsconfig.json: { "compilerOptions": { ... "experimentalDecorators": true, ... } } So for example we want to build a '@LogMethod' decorator, which arroding to the system logging level to decide whether…
