What are the regular expressions that match URL

This article will explain in detail what are the regular expressions for matching URLs. Xiaobian thinks it is quite practical, so share it with you as a reference. I hope you can gain something after reading this article.

A regular expression describes a pattern of string matching, which can be used to check whether a string contains a certain substring, replace a matching substring, or extract a substring from a string that meets a certain condition.

Then the expression:

var match = /^((ht|f)tps?):\/\/ [\w\-]+(\. [\w\-]+)+([\w\-\.,@?^=%&:\/~\+#]* [\w\-\@?^=%&\/~\+#])?$/;

Match:

(1), directly match domain name address:

var matchString = 'https://i.cnblogs.com/';console.log(match.test(matchString)); // ==> true

(2), matching links containing (*.htm,*.html,*.php,*.aspx...) Address of suffix:

var matchString = 'https://i.cnblogs.com/EditPosts.aspx';console.log(match.test(matchString)); // ==> true

(3), matching address with parameters:

var matchString = 'https://i.cnblogs.com/EditPosts.aspx? opt=1';console.log(match.test(matchString)); // ==> true

Instructions for use:

(1)The address must start with http/https/ftp/ftps;

(2)Address cannot contain two-byte symbols or non-linked special characters.

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