option-operators.re

open Belt;

let person = Js.Nullable.return({ "name": "marcos"})->Js.Nullable.toOption;

person
 ->Option.map(person => person##name)
 -> Option.getWithDefault("");

let (>=) = (maybe, func) => maybe->Option.map(func);
let (>?) = (maybe, defaultValue) => maybe->Option.getWithDefault(defaultValue);

let name = person 
  >= (person => person##name) 
  >? "nulo";

let name = person     
  >= (person => person##name) 
  >?  "nulo";