var dP = require('./_object-dp'); var anObject = require('./_an-object'); var getKeys = require('./_object-keys'); module.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) { anObject(O); var keys = getKeys(Properties); var length = keys.length; var i = 0; var P; while (length > i) dP.f(O, P = keys[i++], Properties[P]); return O; };