通过当前时间判断值

写了一个脚本，在报告打开时运行，判断当前时间在8:30:00-20:29:59时返回值为D，否则返回N
var now = new Date();
var currentHour = now.getHours();
var currentMinute = now.getMinutes();
var isDayShift =
    (currentHour > 8 || (currentHour == 8 && currentMinute >= 30)) &&
    (currentHour < 20 || (currentHour == 20 && currentMinute < 30));
param['白晚班' = isDayShift ? 'D' : 'N';
点击应用或debug时报错：装载时运行, no message resource found for message property msg.const.redecl