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- "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);
- };
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