feat(demo): saving user history

1 files changed, 6 insertions, 3 deletions

diff --git a/demo/src/utils/editor-history.util.ts b/demo/src/utils/editor-history.util.ts
index 33d1916..65ca38a 100644
--- a/demo/src/utils/editor-history.util.ts
+++ b/demo/src/utils/editor-history.util.ts
@@ -1,17 +1,20 @@
 const AVRJS8_EDITOR_HISTORY = 'AVRJS8_EDITOR_HISTORY';
 
 export class EditorHistoryUtil {
+  static hasLocalStorage: boolean = !!window.localStorage;
+
   static storeSnippet(codeSnippet: string) {
-    if (window.localStorage) {
-      window.localStorage.setItem(AVRJS8_EDITOR_HISTORY, codeSnippet);
-    } else throw new Error('no localStorage support');
+    if (!EditorHistoryUtil.hasLocalStorage) return;
+    window.localStorage.setItem(AVRJS8_EDITOR_HISTORY, codeSnippet);
   }
 
   static clearSnippet() {
+    if (!EditorHistoryUtil.hasLocalStorage) return;
     localStorage.removeItem(AVRJS8_EDITOR_HISTORY);
   }
 
   static getValue() {
+    if (!EditorHistoryUtil.hasLocalStorage) return;
     return localStorage.getItem(AVRJS8_EDITOR_HISTORY);
   }
 }