momentで簡単なカレンダーを実現

      

               
              
               

            

                
' '
                
{
    {day.date.split('-')[2]}}
            

        

 data () {
            return {
                week: [' ', ' ', ' ', ' ', ' ', ' ', ' '],
                currentDay: moment().format('YYYY-MM-DD'),
                defaultDate:moment().format('YYYY-MM-DD'),
                subN:0,
                addN:0,
            }
        },

 methods:{
            getDays(day) {
                let arr = []
                /*              */
                let weekOfDate = Number(moment(day).format('E'))
                //       ： this.week = [' ', ' ', ' ', ' ', ' ', ' ', ' ']
                for (let i = 0; i < this.week.length; i++) {
                    arr.push(
                        {
                            date: moment(day).subtract(weekOfDate - i - 1, 'd').format('YYYY-MM-DD'),
                            week: this.week[i]
                        }
                    )
                }
                return arr
            },
            lastWeek(){
                this.subN++
                let n =this.subN -this.addN
                this.currentDay = moment(this.defaultDate).subtract(7*n, 'd').format('YYYY-MM-DD')
            },
            nextWeek(){
                this.addN++
                let m =this.addN-this.subN
                this.currentDay = moment(this.defaultDate).add(7*m, 'd').format('YYYY-MM-DD')
            },
            today(){
                this.currentDay=moment().format('YYYY-MM-DD');
            },
}

  import moment from "moment";