OOW

An "Object-Oriented way" for JS (methods that should exist by default). The idea is to add more OO experience, especially suited for teaching OOP. Not intended for production usage.

Installation

npm install @pmoo/oow

(required Node version: 8.x or higher)

Extensions

To see all the available extensions, please have a look at the tests inside the test folder.

Collections

Array, String and Set are classes that have very few methods in common, even though they are all collections. For instance, Set has size and Array has length. So this library defines some common behavior to make sure we can have more polymorphism.

Most of the added message names are inspired by Smalltalk (isEmpty, includesAllOf, at) and Ruby (take, drop, compact).

Polymorphism achieved so far

Among many of the messages added to the collection protocols, these are the messages that some collections have by default but others don't:

• add(obj) works for Array and Set (we added the Array version)
• includes(obj) works for Array and Set (we added the Set version)
• filter(condition) works for every collection (we added the String and Set versions)
• reverse() works for Array and String (we added the String version)

Date

Working with Date is not so easy so there're also helper methods like monthNumber that returns a number from 1 to 12.

New Objects

Point

Point class represents an (x, y) pair. You can access its parts by sending x() and y() messages.

DayOfMonth

DayOfMonth represents a day in a month, not specific to a year, like "November 9th". The day() and monthNumber() messages can be used to access the information.