NULL is used when nothing is associated with a given key. Consequently, associating NULL with a key is the same thing as removing it from the collection.

The size of the internal hash table grows dynamically as data is inserted.

This class is creatable.

This class acts like a read / write array.

This class is enumerable with the FOR EACH keyword.

Properties

Count	Returns the number of elements stored in the collection.
Default	Since 3.9 Return or set the collection default value that is returned when no value is associated with a key.
Empty	Since 3.18 Return if the collection is empty.
First	Since 3.11 Returns the key of the first element inserted in the collection, or NULL if the collection is void.
Key	Returns the key of the last read or last enumerated element.
Keys	Since 3.17 Return a string array of all collection keys.
Last	Since 3.11 Returns the key of the last element inserted in the collection, or NULL if the collection is void.
Length	Returns the number of elements stored in the collection.
ReadOnly	Since 3.20 Return or set if the collection contents is read-only.

Methods

Add	Adds an element to the collection.
Clear	Clears the collection.
Copy	Returns a copy of the collection.
Equals	Since 3.20 Returns if Collection is equals to the current collection.
Exist	Returns if something is associated with this key in the collection.
Insert	Since 3.20 Insert the contents of Collection into the current collection.
Remove	Removes an element from the collection.

Example

PUBLIC SUB Main()

  DIM cAbbr2Weekday AS Collection = ["mo": "Monday", "tu": "Tuesday", "we": "Wednesday", "th": "Thursday", "fr": "Friday", "sa": "Saturday", "su": "Sunday"]
  DIM cCopy AS Collection
  DIM sAbbr AS String

  ' To access the data
  PRINT cAbbr2Weekday["fr"]

  ' Print mapping key to value
  FOR EACH sAbbr IN cAbbr2Weekday
    PRINT cAbbr2Weekday.Key & " --> " & sAbbr
  NEXT

  ' Lenght/Count return both 7
  PRINT cAbbr2Weekday.Count
  PRINT cAbbr2Weekday.Length

  ' Add element and remove it again
  cAbbr2Weekday.Add("sat", "Saturday")
  cAbbr2Weekday.Remove("sat")

  ' Test if a key is present
  PRINT cAbbr2Weekday.Exist("we")

  ' Make a copy and clear the original collection
  cCopy = cAbbr2Weekday.Copy()
  cAbbr2Weekday.Clear()

END