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Version: 3.13.0

Object.getOwnPropertyNames()

The Object.getOwnPropertyNames() method returns an array of all properties (including non-enumerable properties except for those which use Symbol) found directly in a given object.

Syntax​

Object.getOwnPropertyNames(obj)

Parameters​

  • obj
    • : The object whose enumerable and non-enumerable properties are to be returned.

Return value​

An array of strings that corresponds to the properties found directly in the given object.

Description​

Object.getOwnPropertyNames() returns an array whose elements are strings corresponding to the enumerable and non-enumerable properties found directly in a given object obj. The ordering of the enumerable properties in the array is consistent with the ordering exposed by a for...in loop (or by Object.keys()) over the properties of the object. The non-negative integer keys of the object (both enumerable and non-enumerable) are added in ascending order to the array first, followed by the string keys in the order of insertion.