Show how to iterate over the key-value pairs of an associative array, and print each pair out.

Also show how to iterate just over the keys, or the values, if there is a separate way to do that in your language.



See also

 Array
 Associative array: Creation, Iteration
 Collections
 Compound data type
 Doubly-linked list: Definition, Element definition, Element insertion, List Traversal, Element Removal
 Linked list
 Queue: Definition, Usage
 Set
 Singly-linked list: Element definition, Element insertion, List Traversal, Element Removal
 Stack


 
class Main
{
  public static Void main ()
  {
    Int:Str map := [1:"alpha", 2:"beta", 3:"gamma"]
 
    map.keys.each |Int key|
    {
      echo ("Key is: $key")
    }
 
    map.vals.each |Str value|
    {
      echo ("Value is: $value")
    }
 
    map.each |Str value, Int key|
    {
      echo ("Key $key maps to $value")
    }
  }
}
 