Discussion on: Accessing Nested Objects in JavaScript

[Vadim K.]

What about this?

function grab(fn, defaultValue) {
  try {
    const value =  fn();
    return value;
  } catch (err) {
    return defaultValue;
  }
}

// and then

const city = grab(() => user.personalInfo.address.city);

[Vadim K.]

Ah, default value doesn't make sense here, so

function grab(accessor) {
 try {
   const value = accessor();
   return value;
 } catch(err) {
   return;
 }
}