Use <p:commandLink> just for JS execution without form submit
How can I make <p:commandLink> without submit? Just for JS execution.
For <p:commandButton> I can do it this way:
<p:commandButton value="JS button" type="button" onclick="alert('clicked')"/>
What is the analog for <p:commandLink>?
Answer
Just return false from the JavaScript handler.
<p:commandLink ... onclick="alert('clicked'); return false;" />
The same applies to all other on* attributes and the command button, by the way.
<p:commandButton ... onclick="alert('clicked'); return false;" />
Whenever you return false from any JavaScript on* attribute on a HTML element, the element's default action/behavior (in this case, submitting the form) will be blocked.
Nonetheless, if you don't need to invoke a JSF backing bean action method after all, just don't use a command link/button component in first place. Use a plain link/button component.
<h:link ... onclick="alert('clicked'); return false;" />
<p:button ... onclick="alert('clicked'); return false;" />
Those doesn't need to be placed in a form, too.