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4 years ago
"use strict";
var uniq = require("../array/#/uniq")
, value = require("./valid-value")
, push = Array.prototype.push
, getOwnPropertyNames = Object.getOwnPropertyNames
, getPrototypeOf = Object.getPrototypeOf;
module.exports = function (obj) {
var keys;
obj = Object(value(obj));
keys = getOwnPropertyNames(obj);
while ((obj = getPrototypeOf(obj))) {
push.apply(keys, getOwnPropertyNames(obj));
}
return uniq.call(keys);
};