Divi | Adjust anchor Smooth Scroll top position based on Theme Builder fixed header height

divi-smooth-scroll-position.js

jQuery(function($) {
	window.et_pb_smooth_scroll = function($target, $top_section, speed, easing) {

		var $window_width = $(window).width();

		$menu_offset = -1;

		var headerHeight = 143;

		if ($('#wpadminbar').length && $window_width <= 980) {
			$menu_offset += $('#wpadminbar').outerHeight() + headerHeight;
		}
		else {
			$menu_offset += headerHeight;
		}

		//fix sidenav scroll to top
		if ($top_section) {
			$scroll_position = 0;
		}
		else {
			$scroll_position = $target.offset().top - $menu_offset;
		}

		// set swing (animate's scrollTop default) as default value
		if (typeof easing === 'undefined') {
			easing = 'swing';
		}

		$('html, body').animate({ scrollTop: $scroll_position }, speed, easing);

	}
});