JavaScript Symbol asyncIterator Property

JavaScript Symbol asyncIterator property is used to set an object as an async iterable. Iterable properties of this object can be iterated over using a for await...of loop.

An async iterable object is any object that returns a function that produces an AsyncIterator for its Symbol.asyncIterator property.

The Symbol.asyncIterator symbol is a built-in symbol that is used to access an object's @@asyncIterator method. 

Note: For an object to be an async iterable, it must have a Symbol.asyncIterator key.

Property attributes of Symbol.asyncIterator
Writable	no
Enumerable	no
Configurable	no

Example codes for the above property are as follows:

Example 1:

Output: 

0
3
6
9

Example 2:

Output

0
1
2
3
4

Browser Support: The browsers supported by JavaScript Symbol.asyncIterator Property are listed below:

• Google Chrome
• Firefox
• Edge
• Opera
• Safari

We have a complete list of Javascript symbols' properties and methods, to check those please go through the Javascript Symbol Complete Reference article.