// declare regular array (capacity doesn't matter so much)
float foo[4];

// use as int-based array
2.5 => foo[0];

// use as associative array with key "yoyo"
4.0 => foo["yoyo"];

// access as associative (print)
<<< foo["yoyo"] >>>;

// access empty element
<<< foo["gaga"] >>>;  // -> should print 0.0

// add a second associative element
44.0 => foo["yiyi"];

// get the array keys with all of the keys in the array
string keys[0];
foo.getKeys(keys);

// print all keys current in foo
for( auto key : keys )
{
    <<< "key:", key >>>;
}

// isInMap
<<< "(isInMap?)",
    "\nyiyi:", foo.isInMap("yiyi"),
    "\nyoyo:", foo.isInMap("yoyo"),
    "\ngaga:", foo.isInMap("gaga"),
    "\nNONO:", foo.isInMap("NONO") >>>;

// call .help() on an array to get more information about its type, methods, etc.
// foo.help();