{"ScriptPreparationCode":null,"TestCases":[{"Name":"join","Code":"let year = \u00272019\u0027;\r\nlet month = \u002712\u0027;\r\nlet day = \u002720\u0027;\r\nlet str = [year, month, day].join(\u0027-\u0027);","IsDeferred":false},{"Name":"concate","Code":"let year = \u00272019\u0027;\r\nlet month = \u002712\u0027;\r\nlet day = \u002720\u0027;\r\nlet str = year\u002B\u0027-\u0027\u002Bmonth\u002B\u0027-\u0027\u002Bday;","IsDeferred":false}]}