firefox - JavaScript getter for all properties

Question

Long story short: I'm in a situation where I'd like a PHP-style getter, but in JavaScript.

My JavaScript is running in Firefox only, so Mozilla specific JS is OK by me.

The only way I can find to make a JS getter requires specifying its name, but I'd like to define a getter for all possible names. I'm not sure if this is possible, but I'd very much like to know.

Answer 1

Proxy can do it! I'm so happy this exists!! An answer is given here: Is there a javascript equivalent of python's __getattr__ method? . To rephrase in my own words:

var x = new Proxy({}, {
  get(target, name) {
    return "Its hilarious you think I have " + name
  }
})

console.log(x.hair) // logs: "Its hilarious you think I have hair"