获取当月起近几个月的函数

1.vue js 获取连续几个月
2.例如

       const getMonthNine = (maxMonth) => {
    
    
            // 先取到当前日期对象
            let date = new Date();
            // 月份数组
            let nearNine = [];
            // 当月
            let year = date.getFullYear();
            let nowMonth = date.getMonth() + 1;
            for (let i = 0; i < maxMonth; i++) {
    
    
                if (nowMonth <= 0) {
    
    
                    nowMonth = 12;
                    year = year - 1;
                }
                if (nowMonth < 10) {
    
    
                    nearNine[i] = year + "-0" + nowMonth;
                } else {
    
    
                    nearNine[i] = year + "-" + nowMonth;
                }
                nowMonth = nowMonth - 1;
            }
            nearNine.reverse();
            return nearNine;
        };