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

This article mainly introduces how to use the extension operator in JavaScript to convert a class array into an array, which has a certain reference value, and interested friends can refer to it. I hope you can learn a lot after reading this article.

What is the extension operator [... document.querySelectorAll ('div')] javascript? javascript is a dynamically typed, weakly typed language, object-and event-driven, relatively secure and widely used in client-side web page development. It is also a widely used scripting language for client-side Web development. It is mainly used to add dynamic functions to HTML web pages, and now JavaScript can also be used in web servers, such as Node.js.

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