{{alias}}( value[, level] ) Returns an array of an object's inherited writable symbol properties. Property order is not guaranteed, as object property enumeration is not specified according to the ECMAScript specification. In practice, however, most engines use insertion order to sort an object's properties, thus allowing for deterministic extraction. If provided `null` or `undefined`, the function returns an empty array. Parameters ---------- value: any Input value. level: integer (optional) Inheritance level. Returns ------- symbols: Array List of an object's inherited writable symbol properties. Examples -------- > var symbols = {{alias}}( [] ) See Also --------