const AVRJS8_EDITOR_HISTORY = 'AVRJS8_EDITOR_HISTORY' ; export class EditorHistoryUtil { static hasLocalStorage = ! ! window . localStorage ; static storeSnippet ( codeSnippet ) { 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 ) ; } }