Rocket

function number(inputData){
    var n  =  Number(inputData[0]);
    var width = 3 * n;
    var a = 0;
    var b = 0;

    for(var i = 0; i < n; i++) {
         a = (width - 2) / 2 - i;
         b = (width - 2) - a * 2;
        console.log(`${".".repeat(a)}/${" ".repeat(b)}\\${".".repeat(a)}`);
    }

    console.log(`${".".repeat(a)}*${"*".repeat(b)}*${".".repeat(a)}`);

    for(var i = 0; i < n * 2; i++) {
        console.log(`${".".repeat(a)}|${"\\".repeat(b)}|${".".repeat(a)}`);
    }
    a = a +1;
    for(var i = 0; i < n / 2; i++) {
          a-- ;
          b = (width - 2) - a * 2;
        console.log(`${".".repeat(a)}/${"*".repeat(b)}\\${".".repeat(a)}`);
    }
}
// number(["6"])
//                    ......../\........
//                    ......./  \.......
//                    ....../    \......
//                    ...../      \.....
//                    ..../        \....
//                    .../          \...
//                    ...************...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    ...|\\\\\\\\\\|...
//                    .../**********\...
//                    ../************\..
//                    ./**************\.