angular4，获取当前日期（年月日），根据当前日期判断星期几

ngOnInit(): void {
    this.now = new Date();
    this.week = this.transform(this.now);
}



//获取当前时间 判断是星期几
  transform(value: any): any {
    if (value !== undefined) {
      let weekArray = new Array('周日', '周一', '周二', '周三', '周四', '周五', '周六');
      let myDate = new Date(value);
      let week = weekArray[myDate.getDay()];
      return week;
    }
  }