A confirm dialog is often used if you want the user to verify or accept something.
When a confirm dialog pops up, the user will have to click either "OK" or "Cancel" to proceed.
All of AlertifyJS animation/transition effects are disabled due to user preference that the system minimizes the amount of animation or motion it uses. See prefers-reduced-motionCSS media feature.
oncancel
{ Function }
Description: Gets or sets a callback function to be invoked when the user clicks 'Cancel' button or closes the dialog.
Default:undefined
alertify.confirm('a callback will be invoked on cancel.').set('oncancel', function(closeEvent){ alertify.error('Cancel');} );
