The methods summarized in the following table are implemented for (and inherited by) all Collection subclass instances.
| Method | Description |
|---|---|
| add | Adds an object to a collection |
| clear | Removes all entries from a collection |
| copy | Copies entries from the receiver to a compatible collection |
| countOf | Returns the number of times the specified entry occurs in the collection |
| countOf64 | Returns the number of times the specified entry occurs in the collection as an |
| createIterator | Creates an iterator for the Collection class and subclasses |
| deleteIfEmpty | Deletes a shared or exclusive collection if it is empty |
| first | Returns the first entry in the collection |
| getOwner | Returns the object that is the owner of the collection |
| getStatistics | Analyzes the collection and returns structural statistics |
| includes | Returns true if the collection contains a specified object |
| indexNear | Returns an approximate index of an object in a collection |
| indexNear64 | Returns an approximate index of an object in a collection as an |
| indexOf | Returns the index of a specified entry if it exists in the collection |
| indexOf64 | Returns the index of a specified entry if it exists in the collection as an |
| inspect | Inspects a collection of objects |
| inspectModal | Opens a modal Inspector form for the receiver object |
| instantiate | In exclusive collections only, ensures that the object is created before it is used |
| isEmpty | Returns true if the collection has no entries |
| last | Returns the last entry in the collection |
| maxSize | Returns the maximum number of entries that the collection can contain |
| maxSize64 | Returns the maximum number of entries that the collection can contain as an |
| purge | Deletes all object references in a collection |
| rebuild | Removes invalid object references and fixes up dictionary keys in a collection |
| remove | Removes an item from a collection |
| setBlockSize | Specifies or changes the block size of the receiver |
| size | Returns the current number of entries in the collection |
| size64 | Returns the current number of entries in the collection as an |