TypeScript has all of these patterns, they are used very frequently and they are necessary because TypeScript tends to be interesting from time to time since its types only exist at compile time, because it compiles to JavaScript, which is a language without types.
TypeScript also allows any as a keyword, which says “I don’t know which type this is and I don’t care”, which still produces valid JavaScript. To get back to typed variables it is necessary to use typeof (or similar constructs like a type guard).
Given the callout as a mixin, you’re probably right. Other languages have them, but I’ve only heard something described in practice as a mixin working in Angular and Typescript. (Neither of which are my forte, so if I’m wrong, I’m wrong.)
This is likely referring to TypeScript.
TypeScript has all of these patterns, they are used very frequently and they are necessary because TypeScript tends to be interesting from time to time since its types only exist at compile time, because it compiles to JavaScript, which is a language without types.
TypeScript also allows
anyas a keyword, which says “I don’t know which type this is and I don’t care”, which still produces valid JavaScript. To get back to typed variables it is necessary to usetypeof(or similar constructs like a type guard).https://www.typescriptlang.org/docs/handbook/2/typeof-types.html
Given the callout as a mixin, you’re probably right. Other languages have them, but I’ve only heard something described in practice as a mixin working in Angular and Typescript. (Neither of which are my forte, so if I’m wrong, I’m wrong.)