Code optimizations

src/components/organisms/Locations.svelte

@@ -9,12 +9,13 @@
     import Button from '$components/atoms/Button.svelte'
     import Location from '$components/molecules/Location.svelte'
 
-    export let locations: any
+    export let locations: any[]
 
     const { continents, settings: { explore_list }} = getContext('global')
 
     // Continents filtering logic
     let currentContinent: string = undefined
+
     $: filteredLocations = locations.filter(({ country: { continent }}: any) => {
         if (!currentContinent) {
             // Show all locations by default
@@ -30,11 +31,7 @@
      * Filter locations from continent
      */
     const filterLocation = throttle((continent: string) => {
-        if (continent !== currentContinent) {
-            currentContinent = continent
-        } else {
-            currentContinent = undefined
-        }
+        currentContinent = continent !== currentContinent ? continent : null
     }, 700)
 </script>