js显示前七天的日期，前几天依次类推

1.效果图

2.js代码

function beforetime1() {
    let now = new Date();
    //想获取前七天日期就减七，前六天就减六，以此类推
    var date = new Date(now.getTime() - 7 * 24 * 3600 * 1000);
    var y = date.getFullYear();
    var m = date.getMonth() + 1;
    m = m < 10 ? ('0' + m) : m;
    var d = date.getDate();
    d = d < 10 ? ('0' + d) : d;
    var h = date.getHours();
    h = h < 10 ? ('0' + h) : h;
    var minute = date.getMinutes();
    var second = date.getSeconds();
    minute = minute < 10 ? ('0' + minute) : minute;
    second = second < 10 ? ('0' + second) : second;
    // return y + '-' + m + '-' + d + ' ' + h + ':' + minute + ':' + second;//年月日时分秒
    // return y + '-' + m + '-' + d + ' ' + h + ':' + minute;
    return  m + '-' + d + ' ';
}