How to convert seconds to year, month, day, hour, minute, second

function getDateStr(seconds){
    var date = new Date(seconds*1000)
        var year = date.getFullYear();
        var month = date.getMonth() + 1;
        var day = date.getDate();
        var hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
        var minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
        var second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
        var currentTime = year + "-" + month + "-" + day + "  " + hour + ":" + minute + ":" + second;
        return currentTime
}
//getDateStr(1524637692)>"2018-4-25  14:28:12"