elvis operator using proxies.js

const Undefined = new Proxy({}, {
  get: function(target, name){
    if (name == '$'){
      return undefined
    } else {
      return Undefined;
    }
  }
});
let safeAccess = {
  get: function(target, name) {
    if (name == '$'){
      return target
    }
    if (name.endsWith('$')) {
      if (typeof target[name] === 'undefined'){
        return Undefined;
      } else {
        let new_command = name.substring(0, name.length - 1);
        return new Proxy(target[new_command], safeAccess)
      }
    }
    return target[name]
  }
}

let raw_thing = {}


let thing = new Proxy(raw_thing, safeAccess);

console.log('first')
console.log(thing.foo$.bar$.baz$.$)
if (thing.foo$.bar$.baz$.$){
  console.log('failed')
}
console.log('second')
console.log(thing.foo$.bar$[0].baz$.blo$.$)
process.exit()