JavaScript method _ javascript skills

This article mainly introduces how to identify and trace web keywords by using JavaScript. It is very simple and practical to implement the recognition and tracing functions through string traversal, matching, dynamic addition, and other operations, for more information about how to use JavaScript to identify and trace web keywords, see the following example. We will share this with you for your reference. The details are as follows:

Here, we will demonstrate how JavaScript can intelligently identify web keywords and display them in red. I believe this effect is no stranger to everyone. It is much better to use JavaScript to add red keywords than program control output, some functions must be handed over to the customer's browser, which reduces the pressure on the server.

The running effect is as follows:

The Online Demo address is as follows:

Http://demo.jb51.net/js/2015/js-keyword-show-red-color-codes/

The Code is as follows:

 JS query replacement keyword
I am the title: Here is a text introduction!
I am the second child: descriptive text of the second child.