Default keys for objects?

Question

For example, I have this object:
var object = {
first: 1,
second: 2
}

Now I want to set key second to standard, so every time I access the object with simply 'object' or with a key that doesn't exist, it should return second. Is this possible?
Thanks in advance

Answer 1

Use Proxy with getter to achieve it

var object = {
first: 1,
second: 2,

get: function(target, name) {
return this.hasOwnProperty(name) ? this[name]:0; //default
}
}

var obj = new Proxy({}, object);

console.log(obj.zero);
console.log(obj.first);
console.log(obj.second);
console.log(obj.third);

https://code.sololearn.com/W65Bp6xVsfLj/?ref=app