Document readonly

[sandersn]

Fixes #311

[mhegazy]

can you also add a note about getters with no setters are inferred to be readonly properties.

[mhegazy]

👍

[sandersn]

I thought about adding that note, but I'm not sure what difference it makes? Just in the .d.ts, right?

[mhegazy]

for usage as well.

class C {
    get x() { return 0; }
}
c.x = 1; // Error

[sandersn]

Right, but readonly doesn't add anything that wasn't there before. The only change is in the type. I'll make the note.

[mhegazy]

might not be worth it... up to you.

[sandersn]

I went ahead with it. I didn't think about the .d.ts case when I first made the decision not to document it.

[mhegazy]

👍