ServiceNow: Building Powerful Workflows

Using client-side code effectively

Client-side scripting lets you to provide an enhanced experience to the users of your system by providing instant feedback and a faster way to interact. It is often much quicker to validate information using the browser than asking the instance to do the work, simply because the instance may be located many hundreds or thousands of miles away, across several Internet links.

Most ServiceNow developers get very excited by the power that JavaScript brings. But this power and capability does come with downsides, and this enthusiasm can result in inappropriate usage, many of which we'll touch on in this chapter, and throughout the rest of the book. Specifically, we'll look at better ways to deal with these common ...