Shulou(Shulou.com)06/01 Report--

This article is about how js creates empty objects. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Create an empty object

You can use {} to create an object that looks empty, but it still has _ _ proto__ and the usual hasOwnProperty and other object methods. However, there is one way to create a pure "dictionary" object:

Let dict = Object.create (null); / / dict.__proto__ = = "undefined" / / No object properties exist until you add them

The objects created in this way are pure, have no attributes or objects, and are very clean.

Thank you for reading! This is the end of the article on "how to create empty objects in js". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.