hash keys / values as array [duplicate]

Answer 1

In ES5 supported (or shimmed) browsers...

var keys = Object.keys(myHash);

var values = keys.map(function(v) { return myHash[v]; });

---

Shims from MDN...

• Object.keys

• Array.prototype.map

Answer 2

function getKeys(obj){
    var keys = [];
    for (key in obj) {
        if (obj.hasOwnProperty(key)) { keys[keys.length] = key; }
    } 
    return keys;
}

Answer 3

The second answer (at the time of writing) gives :

var values = keys.map(function(v) { return myHash[v]; });

But I prefer using jQuery's own $.map :

var values = $.map(myHash, function(v) { return v; });

Since jQuery takes care of cross-browser compatibility. Plus it's shorter :)

At any rate, I always try to be as functional as possible. One-liners are nicers than loops.