--- /dev/null
+var has = require('./_has')
+ , toIObject = require('./_to-iobject')
+ , arrayIndexOf = require('./_array-includes')(false)
+ , IE_PROTO = require('./_shared-key')('IE_PROTO');
+
+module.exports = function(object, names){
+ var O = toIObject(object)
+ , i = 0
+ , result = []
+ , key;
+ for(key in O)if(key != IE_PROTO)has(O, key) && result.push(key);
+ // Don't enum bug & hidden keys
+ while(names.length > i)if(has(O, key = names[i++])){
+ ~arrayIndexOf(result, key) || result.push(key);
+ }
+ return result;
+};
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