Type scriptify 'Welcome' store

src/lib/islands/input-island-form.svelte

@@ -1,4 +1,4 @@
-<script>
+<script lang="ts">
   import Island from '$lib/islands/island.svelte';
   export let variables = {
     title: 'Uninitialised',

src/lib/islands/island.svelte

@@ -1,4 +1,4 @@
-<script>
+<script lang="ts">
   import { fade } from 'svelte/transition';
 
   export let variables = { title: '' };

src/lib/islands/overlay-island.svelte

@@ -1,4 +1,4 @@
-<script>
+<script lang="ts">
   import { fade } from 'svelte/transition';
 
   export let variables = { title: '' };

src/lib/islands/result-island.svelte

@@ -1,6 +1,13 @@
-<script>
+<script lang="ts">
   import Island from '$lib/islands/island.svelte';
-  export let resultObject = {
+  
+  interface resultObj {
+    results: boolean,
+    title: string,
+    resultLines: string[]
+  }
+  
+  export let resultObject: resultObj = {
     results: true,
     title: '',
     resultLines: []

src/lib/stores/version.js

@@ -1,3 +0,0 @@
-export const version = '2023.7.1';
-export const versionTag = 'beta.6';
-export const showWelcome = true;

src/lib/stores/version.ts

@@ -0,0 +1,3 @@
+export const version: string = '2023.7.1';
+export const versionTag: string = 'beta.6';
+export const showWelcome: boolean = true;

src/lib/stores/welcome.ts

@@ -1,10 +1,10 @@
-import { writable } from 'svelte/store';
+import { writable, type Writable } from 'svelte/store';
 import { browser } from '$app/environment';
 
 export const welcome = writable(fromLocalStorage('welcome', '0'));
 toLocalStorage(welcome, 'welcome');
 
-function fromLocalStorage(storageKey, fallback) {
+function fromLocalStorage(storageKey: string, fallback: string) {
   if (browser) {
     const storedValue = localStorage.getItem(storageKey);
     if (storedValue !== 'undefined') {
@@ -14,9 +14,9 @@ function fromLocalStorage(storageKey, fallback) {
   return fallback;
 }
 
-function toLocalStorage(store, storageKey) {
+function toLocalStorage(store: Writable<any>, storageKey: string) {
   if (browser) {
-    store.subscribe((value) => {
+    store.subscribe((value: string) => {
       localStorage.setItem(storageKey, value);
     });
   }