import std.stdio;

import std.array : appender;

​

void main()

{

    //declaring a dynamic array

    int [] arrayofNumbers;

    //append an element using the ~= syntax

    arrayofNumbers ~= 1;

    arrayofNumbers ~= 2;

    //print the array

    writeln(arrayofNumbers);

​

    //Using appender

    auto appendNumber = appender(arrayofNumbers);

    appendNumber.put(10);

    writeln(appendNumber.data);

​

    writeln(appendNumber.data.length);

​

}