tylerCBD

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

	File ---> application\controllers\admin\Authentication.php:
	23: hooks()->do_action('admin_auth_init');
	80: hooks()->do_action('after_staff_login');
	107: hooks()->do_action('after_staff_login');
	117: hooks()->do_action('after_staff_login');
	219: hooks()->do_action('after_user_logout');

	File ---> application\controllers\admin\Auto_update.php:
	14: hooks()->do_action('before_perform_update', $latest_version);