Email mailbox URL regular expression regular expression matching Chinese regular expression matching three common regular expression interview question and pen questions

 3 Common regular expression interview question and pen questions

Solving interview questions: how regular expression matching Chinese regular expression matching mailboxes how regular expression matching URL how

1. Write a regular expression matching URL.

‘/^(https?|ftps?):\/\/(www)\.([^\.\/]+)\.(com|cn|org)(\/[\w-\.\/\?\%\&\=]*)?/i’

Intermediate symbols are available before and after the start of the verification email format \ instead of writing a simplified portion w, there may be multiple suffixes

"/^[0-9a-zA-Z-]+@[0-9a-zA-Z-]+(\.[0-9a-zA-Z-]+){1,3}$/"

Chinese match

[\ U4e00- \ u9fa5] + (1 or more represented in Chinese)