Sets the function that runs when a member logs out.
Use the onLogout() function for code you want to run after a member logs out
from your site.
Usually, you want to call the onLogout() function in the masterPage.js file in the
code editor so that the onLogout() event handler runs no matter which
page on your site a member uses to log out.
Notes:
The APIs in wix-members-frontend are only partially functional when previewing your site.
View a published version of your site to see their complete functionality.
The APIs in wix-members-frontend can only be used once the page has loaded. Therefore,
you must use them in code that is contained in or is called from the
onReady() event handler or any element event handler.
handler(): void Function name or expression to run when a member logs out.