Considerations when using Javascript in Visualforce

Sara Has No Limits

As part of my research for the new course I am doing on Visualforce, I have been going through posts on the Salesforce forums. I ran across this one in which the poster was asking what was the best way to select multiple checkboxes on a Visualforce page when a “Check All” checkbox was selected.

The best answer that was chosen was a recommendation by someone to use the ActionSupport component. The accepted responder even provided sample code. While the response was technically correct, I did not think it was the best solution. The reason I say this is because if you execute the sample code provided, you will note that there is a significant delay between the time you select the “Check All” checkbox and the time the other checkboxes are selected.

What causes the delay?

The ActionSupport component, which adds AJAX support to another component, allows that…

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