Javascript method for implementing form detection and form prompting _ javascript skills

This article describes how to implement form detection and form prompting in javascript. It involves some tips on the effects of javascript form elements and is very simple and practical, for more information, see the examples in this article. Share it with you for your reference. The details are as follows:

This is a practical form judgment and form prompt effect. If you click the button that requires text input, the prompt will run. The prompt box is more personalized and has a triangle symbol pointing to the input box, two images need to be downloaded.

Shows the running effect:

The Online Demo address is as follows:

Http://demo.jb51.net/js/2015/js-table-check-form-tips-codes/

The Code is as follows:

Form detection and form prompt