js秒转换为时分秒00:00:00的格式

timeConversion(date) {
    let day = Math.floor(date / (24 * 3600)); // Math.floor()向下取整
    let hour = Math.floor((date - day * 24 * 3600) / 3600);
    let minute = Math.floor((date - day * 24 * 3600 - hour * 3600) / 60);
    let second = date - day * 24 * 3600 - hour * 3600 - minute * 60;
    if (hour) {
        return `${hour}:${minute}:${second}`;
    } else {
        if (second < 10) {
            if (minute < 10) {
                return `0${minute}:${second}0`;
            } else {
                return `${minute}:${second}0`;
            }
        } else {
            return `${minute}:${second}`;
        }
    }
},