Composition with optional chaining

[kesne]

Assuming that optional chaining advances, this proposal will need to be able to work with optional chains.

[erights]

Timely! Thanks for raising this. I will mention this in my upcoming presentation.

And agreed of course. These must be able to be used together.

[caub]

good point

// current valid syntaxes with optional-chaining and infix-bang
const foo = (await (await fetch(url)).json())?.foo // the json response could be "null"
const foo = (await fetch(url)!json())?.foo

// some ideas
const foo = await fetch(url)!json()!?foo // this ?
const foo = await fetch(url)!json()?!foo // that ?
const foo = await fetch(url)!json()!.foo // or that to keep similarity with optional-chaining dot?

[KristjanTammekivi]

Just a quick note that !. should be considered unsuitable because it has a meaning in TypeScript as non-null assertion operator