Experimental
Building blocks for composing lists.
Globals
Constructors
Iterable()
Constructs an Iterable object.
List(element1, element2, ...)
Constructor can takes any number of elements and creates an instance of List populated with the specified elements.
Parameters
element1 : Object|String|Number
element2 : Object|String|Number
... : Object|String|Number
Iterable
Base trait that can be used to compose traits with non-standard enumeration behaviors.
This trait is supposed to be used as part of a composition, since it only provides custom enumeration behavior to a composed object. It defines one required _keyValueMap property, that is used as a hash of "key-values" to iterate on during enumeration.
Properties
_keyValueMap
Hash map of key-values to iterate over. Required property: that is, the property must be supplied by objects that compose this trait. Note: That this property can be a getter if you need dynamic behavior.
List
An ordered collection (also known as a sequence) disallowing duplicate elements. List is composed out of Iterable, therefore it provides custom enumeration behavior that is similar to array (enumerates only on the elements of the list).
List is a base trait and is meant to be part of a composition, since all of its API is private except for the length property.
Examples:
var MyList = List.compose({
add: function add(item1, item2, /*item3...*/) {
Array.slice(arguments).forEach(this._add.bind(this));
},
remove: function remove(item1, item2, /*item3...*/) {
Array.slice(arguments).forEach(this._remove.bind(this));
}
});
MyList('foo', 'bar', 'baz').length == 3; // true
new MyList('new', 'keyword').length == 2; // true
MyList.apply(null, [1, 2, 3]).length == 3; // true
let list = MyList();
list.length == 0; // true
list.add(1, 2, 3) == 3; // true
Methods
_has(element)
Parameters
element : Object|Number|String
Returns true if this list contains the specified element.
_add(element)
Parameters
element : Object|Number|String
Appends the specified element to the end of this list, if it doesn't contain it.
Ignores the call if element is already contained.
_remove(element)
Parameters
element : Object|Number|String
Removes specified element from this list, if it contains it.
Ignores the call if element is not contained.
_clear()
Removes all of the elements from this list.
Properties
length
Number of elements in this list.