Dictionary extends Collection to bring typed Collections to JavaScript's weakly typed enviroment. Built to ignore primitives or convert them into Objects.

API Reference

new Dictionary(type, [initial])

Creates a Dictionary instance.

• type is the non-primitive constructor symbol reference to mark. For example, if I created a class called Book, then I would pass in Book, not an instance.

• initial is the initialiser to be passed to the encapsulated Collection, expected as Array.<Array.<String, Book>>.

  class Book {
    constructor (bookName) {
      this.bookName = bookName;
    }
  }
  
  new Dictionary(Book);
  new Dictionary(Book, [['one', new Book('one')]]);

For more details on how this constructor works, see Collection#constructor.

.set(name, value)

Overrides Collection's method (which can be read about here).

• name is expected as a String, identifying the name/key that will identify the particular pair.

• value is expected as the Object you passed to the constructor initially; for the purpose of example this was Book in our case.

  const myDictionary = new Dictionary(Book);
  
  myDictionary.set('one', new Book('one'));

.map(condition, [binding])

Overrides Collection's method (which can be read about here to reset item caches.