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


array set myAry {
    # list items here...
}
 
# Iterate over keys and values
foreach {key value} [array get myAry] {
    puts "$key -> $value"
}
 
# Iterate over just keys
foreach key [array names myAry] {
    puts "key = $key"
}
 
# There is nothing for directly iterating over just the values
# Use the keys+values version and ignore the keys