This is true but these are also old features, and the TS team have stated that they will not add any more features like those, and to a certain extent regret adding them initially (particularly decorators, which iirc were added because the Angular framework wanted to use them). You can also see that these features aren't really being updated to match recent Typescript developments (parameter properties can't do true private properties, const enums don't work with isolated modules, etc).
I don't think those features are ever going to go away, because they've been around for so long and are so widely used. But I generally use erasableSyntaxOnly in new projects, because I find it's useful when my typescript source matches the generated Javascript code as much as possible.
I don't think those features are ever going to go away, because they've been around for so long and are so widely used. But I generally use erasableSyntaxOnly in new projects, because I find it's useful when my typescript source matches the generated Javascript code as much as possible.