I was surprised to find that the following code compiles fine in TypeScript and only errors at runtime:

class X {
    set writeOnlyProp(value: number) {
        // do some setting stuff
    }
}

const x = new X()
// runtime error: Cannot read properties of undefined
console.log(x.writeOnlyProp.toString())

I know it’s possible in newer versions of TS to add a getter that explicitly returns undefined, but that seems like a hack. Is there a better way of typing this? Or perhaps a TSConfig strict* flag that handles it automatically?