How does html tell if it's a character?

Xiaobian to share with you how to judge whether html is a character, I believe most people still do not know how, so share this article for everyone's reference, I hope you have a lot of harvest after reading this article, let's go to understand it together!

How to determine if it is a character

if (/[^/x00-/xff]/g.test(s)) alert("contains Chinese characters");else alert("all characters");html What are the characteristics 1. Simplicity: Hypertext Markup Language version upgrade adopts superset mode, which is more flexible and convenient, suitable for beginner front-end developers. Extensibility: The wide application of hypertext markup language brings enhanced functions, additional identifiers and other requirements. Hypertext markup language adopts the method of subclass elements to ensure system expansion. Platform independence: Hypertext markup languages can be used on a wide range of platforms, which is one reason for the popularity of the World Wide Web. HTML is the universal language of the web, allowing web creators to create complex pages of text and images that can be viewed by anyone else on the web, regardless of the type of computer or browser used.

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