Project: form
Task (challenging): Click export button (class 'export') to save Survey exported data to 'localStorage.data'. Survey exported data format is like `{title:'survey title', questions:[{title:'single1 title', name:'single1', options:['option 1', 'option 2'], required:false, isShuffleMode:true, isSelectMode:true}, {title:'open1 title', name:'open1', isMultilines:true, required:false, isShuffleMode:false}]}`. Each type of question's JSON data should contain all properties from constructor params and configs.