JavaScript: Enumerable Property

By Xah Lee. Date: 2022-08-31. Last updated: 2022-09-01.

What is Enumerable Property

A Enumerable Property is a property whose Property Attribute enumerable is true.

Purpose of Enumerable Attribute

the property attribute enumerable is a marker that indicates the property should be selected in looping constructs. For example, in Array items are properties that should be listed when going thru, but the property length is not.

How to Check If Property is Enumerable

Object.prototype.propertyIsEnumerable

JavaScript Property

Property Overview
Property Key
Dot vs Bracket Notation

Create/Delete Property
Get/Set Property
Property Existence
Access Property
List Properties
for-in Loop

Enumerable
Property Attributes
Property Descriptor

Getter/Setter

BUY

ΣJS
JavaScript in Depth