doc: document toggleOrder

Author: bryanmylee

docs/src/routes/docs/[...3]plugins/[...2]add-sort-by.md

@@ -45,6 +45,12 @@ Takes an [Event](https://developer.mozilla.org/en-US/docs/Web/API/Event) and ret
 
 _Defaults to multi-sort on shift-click_.
 
+### `toggleOrder?: ()[]`
+
+Allows customization of the toggling order. This cannot contain duplicate values. Set this to `['asc', 'desc']` to disable toggling to an unsorted column.
+
+_Defaults to `['asc', 'desc', undefined]`_.
+
 ## Column Options
 
 :::callout

src/routes/+page.svelte

@@ -44,7 +44,9 @@
 		group: addGroupBy({
 			initialGroupByIds: [],
 		}),
-		sort: addSortBy(),
+		sort: addSortBy({
+			toggleOrder: ['asc', 'desc'],
+		}),
 		expand: addExpandedRows({
 			initialExpandedIds: { 1: true },
 		}),