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How to understand the meaning of null in js

Shulou Source: shulou.com Published: 2022-06-03 07:35:22 09月30日 Update

This article mainly explains "how to understand the meaning of null in js". The explanation in this article is simple and clear, easy to learn and understand. Please follow the ideas of Xiaobian and go deep into it slowly to study and learn "how to understand the meaning of null in js" together!

null is a special type in JavaScript that is quite different from other programming languages.

In other programming languages, null is usually used to indicate an empty reference, while in JavaScript it indicates that a variable is empty or unknown.

examples

const missingObject = null;const existingObject = { message: 'Hello! ' }; MissingObject == null; // => trueexistingObject == null; // => false Thank you for reading, the above is "how to understand the meaning of null in js" content, after the study of this article, I believe that everyone on how to understand the meaning of null in js this problem has a deeper understanding, the specific use of the situation also needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

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