js获取月初月末

    <script>
        var time = new Date();
        var timeYear = time.getFullYear();
        var timeMonth = time.getMonth()+1;
        if(timeMonth>12){
            timeMonth = 1;
            y++
        }
        var monthLastDay = new Date(timeYear,timeMonth,0).getDate(); //当前月月末日
        var yc = timeYear+"-"+(timeMonth<10?"0"+timeMonth:timeMonth)+"-"+"01"+" 00:00:00";
        var ym = timeYear+"-"+(timeMonth<10?"0"+timeMonth:timeMonth)+"-"+(monthLastDay<10?"0"+monthLastDay:monthLastDay)+" 23:59:59";
        console.log("月初=>",yc)
        console.log("月末=>",ym)
    </script>