Your own implementation of an online JavaScript regular expression tester--jre-parser

This article was originally posted in my personal blog: http://jerryzou.com/posts/jreparser/

Yesterday, while watching the 30-minute introductory tour of regular expressions, I saw that the blogger himself implemented a C# regular tester that looked very handy. But I don't really like to mess around, so I'm wondering if I can implement a javascript regular expression tester myself. So dozens of lines of code implemented such a regular tester.

Let's show you the 0.1 version.

The page is also relatively simple, but the basic features are. can be used normally ~.

The process of extracting a regular expression from a user's input thanks to the @依云 great God Point (Portal), the following solutions are available:

R is the user input string var jtester = function (r) {    var begin = R.indexof ('/');    var end = R.lastindexof ('/');    var flags = R.match (/\/([igm]{0,3}) $/i) [1];    THIS.R = new RegExp (r.substring (begin + 1, end), flags);};

If there's any better idea, you can always talk to me, or simply fork the repo I created on GitHub and pull request~. (Portal for Project on GitHub)

Finally, the address of this test tool is attached: http://zry656565.github.io/JRE-Parser/

Your own implementation of an online JavaScript regular expression tester--jre-parser