Document class constructor property parameters initialization order.

[thomas-w-grant]

The current handbook describes very well the order of initialization for base class vs derived class. But I failed to find any documentation on when are contructor property parameters initialized. I believe they are initialized before class field initializers. This was critical info that I lacked and had to dig deeper to find it.

Please add this information to the paragraph that describes constructor property parameters. https://www.typescriptlang.org/docs/handbook/2/classes.html#parameter-properties

[richvdh]

I believe they are initialized before class field initializers

It actually looks like this might have changed, as of target: es2022. When I set that option, regular properties are initialised before property parameters; related I think to microsoft/TypeScript#45995