Tell TypeScript we are sure about the types

Author: mlocati

gh-pages/src/App.vue

@@ -28,7 +28,7 @@ onMounted(async () => {
   wantedVersion.value =
     initialVersion && availableVersions.value.includes(initialVersion)
       ? initialVersion
-      : availableVersions.value![0];
+      : availableVersions.value![0] as string;
   UrlService.onVersionChanged((v) => {
     if (v && availableVersions.value?.includes(v)) {
       wantedVersion.value = v;

gh-pages/src/components/Differ.vue

@@ -91,7 +91,7 @@ onMounted(async () => {
     props.initialVersion &&
     availableVersions.value.includes(props.initialVersion)
       ? props.initialVersion
-      : availableVersions.value![0];
+      : availableVersions.value![0] as string;
   const toVersionIndex = availableVersions.value!.indexOf(toVersionText.value);
   fromVersionText.value = availableVersions.value![toVersionIndex + 1] || '';
 });