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

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Using JavaScript in Visualforce Pages
Using $Component to Reference Components from JavaScript
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JavaScript Remoting for Apex Controllers
What Is JavaScript Remoting?
When to Use JavaScript Remoting
Comparing JavaScript Remoting and <apex:actionFunction>
Comparing JavaScript Remoting and Remote Objects
Adding JavaScript Remoting to a Visualforce Page
Declaring a Remote Method in Apex
Handling the Remote Response
Debugging JavaScript Remoting
JavaScript Remoting Limits and Considerations
JavaScript Remoting Example
Common Visualforce JavaScript Remoting API Validation Errors
Visualforce Remote Objects
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