method Map.get

fn main() io {
  let m: Map<str, i32> = {"a": 1}
  print("{m.values()}")
}

[1]

fn main() io {
  let m: Map<str, i32> = {"a": 1}
  print("{m.keys()}")
}

["a"]

fn main() io {
  var m: Map<str, i32> = {"a": 1}
  m.clear()
  print("{m.len()}")
}

0

fn main() io {
  let m: Map<str, i32> = {"a": 1}
  print("{m.contains("a")} {m.contains("b")}")
}

true false

fn main() io {
  var m: Map<str, i32> = {"a": 1}
  print("{m.remove("a")} {m.remove("a")}")
}

1 none

fn main() io {
  var m: Map<str, i32> = {:}
  m.insert("a", 1)
  m.insert("a", 2)
  print("{m.get("a")} {m.len()}")
}

2 1

fn main() io {
  let m: Map<str, i32> = {"a": 1}
  print("{m.get("a")} {m.get("z")}")
}

1 none