How to pick a Javascript object randomly by index?

Question

I have the following var, which is an object:

var users = {};

I insert users in this object like this:

users["john"] = "johns property";
users["mike"] = "mikes property";
users["luke"] = "lukes property";

I've read many questions here, and I've learned that you can't access objects directly by index. Ok, no problem, because I need to pick any random object from this "array of objects" (if that's the right expression).

More specifically, I want to pick any random object from the collection, it can be john, mike or luke, whichever. I know I can use a random number generator to get a random index, but then I won't be able to access an object from the collection using the index; so I'm looking for directions.

Get keys using Object.keys(). Get random number from 0 to the no. of keys - 1. Get the value of the key at that index in keys. — Tushar
– Tushar, Commented Dec 13, 2016 at 4:30
Object.keys(users) is a starting point ... oops, Tushar beat me to it — Jaromanda X
– Jaromanda X, Commented Dec 13, 2016 at 4:30

spankajd · Accepted Answer · 2016-12-13 04:57:53Z

2

hi try following...

var users = {};

users["john"] = "johns property";
users["mike"] = "mikes property";
users["luke"] = "lukes property";

var index = Object.keys(users);

console.log(users[index[Math.floor(Math.random()*index.length)]]);

edited Dec 13, 2016 at 4:57

answered Dec 13, 2016 at 4:44

spankajd

9527 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to pick a Javascript object randomly by index?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related