• Perl

print "$_: $m{$_}\n" for keys %m;

• C++

for (auto entry : m) {
	std::cout << entry.first << ": " << entry.second << "\n";
}

• C#

Console.WriteLine(string.Join(Environment.NewLine, m));

• Dart

print(m);

• Elixir

IO.inspect m

• Go

fmt.Printf("%q", m)

• Go

fmt.Println(m)

• JS

console.log(m);

• JS

console.table(m);

• Java

System.out.println(m);

• Java

m.forEach((k, v) -> {
    out.println(k + " = " + v);
});

• Java

m.entrySet().forEach(out::println);

• Pascal

for APair in m do writeln(APair.Key, APair.Value);

• Python

print(m)

• Python

class FormatMap(dict):
    def __str__(self):
        strings = []
        for key, value in self.items():
            strings.append(f'{key} = {value}')
        return ', '.join(strings)
x = FormatMap(m)
print(x)

• Python

print(*m.items(), sep='\n')

• Ruby

puts m

• Rust

println!("{:?}", m);