Function Overloading

Functions defined in script can be overloaded by arity (i.e. they are resolved purely upon the function’s name and number of parameters, but not parameter types since all parameters are dynamic).

New definitions overwrite previous definitions of the same name and number of parameters.

fn foo(x, y, z) {
    print(`Three!!! ${x}, ${y}, ${z}`);
}
fn foo(x) {
    print(`One! ${x}`);
}
fn foo(x, y) {
    print(`Two! ${x}, ${y}`);
}
fn foo() {
    print("None.");
}
fn foo(x) {     // <- overwrites previous definition
    print(`HA! NEW ONE! ${x}`);
}

foo(1,2,3);     // prints "Three!!! 1,2,3"

foo(42);        // prints "HA! NEW ONE! 42"

foo(1,2);       // prints "Two!! 1,2"

foo();          // prints "None."