javascript - js regular replacement problem

Question

{code...} Replace the content in the tag with {code...} How to write the regular expression?

PHP中文网 · Answer

First, if you have learned the principles of compilation, you will know that regular expressions are not capable of processing nested data structures. In other words, if you want to achieve the requirement of [selecting the first i tag of nested p in body] through regular expression, it is not feasible in principle.

Second, you are dealing with a structured DOM text, so you can use jQuery’s parseHTML method to achieve this. The object obtained after passing jQuery parse can use $ to further select nodes such as p or i. This can solve your text replacement problem simply and effectively.

If you are on the Node server, just replace jQuery with cheerio.

PHP中文网 · Answer

If you only want to replace in the current test text you gave, because the situation is relatively simple, you only need to write a regular match like ([u4e00-u9fa5]+) and replace it with {{#$1#}}

Php8, I'm coming too

Learn website layout in 30 minutes

Shangguan Oracle Beginner to Proficient Video Tutorial

Your first line of UNI-APP code

Flutter from scratch to app launch

Brother Lian New Linux Video Tutorial

AXURE 9 Video Tutorial (Suitable for Product Manager Interactive Product Design UI)

Zero Basic Proficiency PS Video Tutorial

16 day UI video tutorial to get you started

PS Techniques and Slicing Techniques Video Tutorial

Alibaba Cloud Environment Construction and Project Launch Video Tutorial

Overview of Computer Networks - Basic Knowledge that Programmers Must Master

Essential Tutorial for Programmers - HTTP Protocol Explanation

Websocket Video Tutorial