Order Preserving Dictionary

OrderPreservingDictionary preserves the order in which elements were added to to it.

Quick Start

Installation

Metacello new
	baseline: 'OrderPreservingDictionary';
	repository: 'github://pharo-contributions/OrderPreservingDictionary/src';
	load.

Usage

Basic Dictionary

(dict := Dictionary new)
	at: #apple put: 20;
	at: #orange put: 15.

dict keys. "#(#orange #apple)"

OrderPreservingDictionary

(dict := OrderPreservingDictionary new)
	at: #apple put: 20;
	at: #orange put: 15.

dict keys. "#(#apple #orange)"