Comparing JavaScript Remoting and <apex:actionFunction>

The <apex:actionFunction> component also lets you call controller action methods through JavaScript.

In general, <apex:actionFunction> is easier to use and requires less code, while JavaScript remoting offers more flexibility.

Here are some specific differences between the two.

• The <apex:actionFunction> tag:

  • lets you specify rerender targets
  • submits the form
  • doesn’t require you to write any JavaScript

• JavaScript remoting:

  • lets you pass parameters
  • provides a callback
  • requires you to write some JavaScript