demo/src/utils/editor-history.util.ts


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const AVRJS8_EDITOR_HISTORY = 'AVRJS8_EDITOR_HISTORY';

export class EditorHistoryUtil {
  static hasLocalStorage: boolean = !!window.localStorage;

  static storeSnippet(codeSnippet: string) {
    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);
  }
}