Document "@as(jsonxxx)"

[cristianoc]

Looks like this is missing in the documentation.

@module("library-x") @val
external doStuff: (@as(json`{format:"utf8", includeStuff: false}`) _, string) => string = "doStuff"


let fileContents = doStuff("somefilename.txt")
// Compiles to:
// var fileContents = LibraryX.doStuff({format:"utf8", includeStuff: false}, "somefilename.txt");

[nireno]

It gets a brief mention under fixed arguments: https://rescript-lang.org/docs/manual/latest/bind-to-js-function#fixed-arguments

[nireno]

#46 also describes this issue