JS: List Properties

By Xah Lee. Date: 2017-04-07. Last updated: 2017-10-30.

To list properties of a object, use one of the following methods. Which one to use depends on if you want enumerable keys only, and or including symbol keys.

Properties to Array
syntax	meaning	proto chain	enumerable only	include symbol key	include string key
`Object.keys(o)`	[see JS: Object.keys]	no	yes	no	yes
`Object. getOwnPropertyNames(o)`	[see JS: Object.getOwnPropertyNames]	no	no	no	yes
`Object. getOwnPropertySymbols(o)`	[see JS: Object.getOwnPropertySymbols]	no	no	yes	no
`Reflect.ownKeys(o)`	[see JS: Reflect.ownKeys]	no	no	yes	yes

[see JS: Property Attributes, writable, enumerable, configurable]

Array-Like Object to Array

[see JS: Array-Like Object to Array]

Iterable Object to Array

If the object is iterable, use:

Array.from(iterable)

[see JS: Array.from]

[see JS: Iterable]

Array Topic

JS: Array Basics
JS: Understand JS Array
JS: Create Array
JS: Sparse Array
JS: Array-Like Object
JS: Array How-To
JS: Array Object
JS: Array.prototype

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