Shulou(Shulou.com)06/03 Report--

This article mainly introduces "Why does javascript need to use asynchronous programming". In daily operation, I believe that many people have doubts about why javascript needs to use asynchronous programming. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about why javascript needs to use asynchronous programming. Next, please follow the editor to study!

The so-called asynchronous, to put it simply, a task is divided into two segments, first execute the first paragraph, and then perform other tasks. When the first paragraph has an implementation result, go back to the second paragraph.

Reason

1. JavaScript is a single thread.

2. In order to improve the utilization of CPU. It not only improves the utilization of CPU, but also increases the difficulty of development, especially the readability of the code.

Example

Console.log (1); setTimeout (function () {console.log (2);}); console.log (3); at this point, the study of "why javascript needs to use asynchronous programming" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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