OutputCollection

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

The interface implemented for a mutable collection type so that values can be added to it

Guides

• Introduction
• Interfaces

Interface Synopsis

interface OutputCollection {...}

Public Methods

• ->add(Te $e): this
  Add a value to the collection and return the collection itself
• ->addAll(?Traversable<Te> $traversable): this
  For every element in the provided Traversable, append a value into the current collection