Not allowed to actually do it

src/routes/map/[slug]/+page.svelte

@@ -0,0 +1,11 @@
+<script lang="ts">
+    import RouteRow from "$lib/components/RouteRow.svelte";
+
+    export let data;
+
+    let reversed = false;
+
+    $: proceccedFeatures = (() => {
+        const list = reversed ? [...data.route].reverse() : [...data.route];
+    })
+</script>