Source code in the ecstasy programming language

Map map = new HashMap();
map["foo"] = 5;      // or: map.put("foo", 5)
map["bar"] = 10;
map["baz"] = 15;
map["foo"] = 6;      // replaces previous value of 5


Map map = ["foo"=6, "bar"=10, "baz"=15];


Int? mightBeNull = map["foo"];
Int neverNull = map.getOrDefault("foo", 0);
if (Int n := map.get("foo")) {
    // if "foo" is in the map, then the variable "n" is set to its value
} else {
    // if "foo" is not in the map, then the variable "n" is not defined
}


for (String key : map) {
    // the variable "key" is defined here
}


for (Int value : map.values) {
    // the variable "value" is defined here
}


for ((String key, Int value) : map) {
    // the variables "key" and "value" are defined here
}