Vector type for Javascript -- built for discussion on types and functions in Javascript

Vector.js

(function () {
    'use strict';

    function Vector() {
        Vector.attachPoints(this, arguments);
    }

    // Inherted behaviors

    Vector.prototype = {

        getValues: function (result, index) {
            var point = this[index];
            var pointExists = typeof point !== 'undefined';

            return pointExists ? this.getValues(Vector.pushPoint(result, point), index + 1) : result;
        },

        // Overrides Object.prototype.toString
        toString: function () {
            return '<' + this.valueOf().join(',') + '>';
        },

        // Overrides Object.prototype.valueOf
        valueOf: function () {
            return this.getValues([], 0);
        }
    };

    // Static functions
    
    Vector.build = function buildVector(point1, point2) {
        var vector = new Vector();

        return Vector.attachPoints(vector, arguments);
    };

    Vector.attachPoints = function attachPoints(vector, args) {
        var points = Array.prototype.slice.call(args);

        points.reduce(Vector.attachPoint, vector);

        return vector;
    };

    Vector.attachPoint = function attachPoint(vector, point, index) {
        vector[index] = point;
        vector.length = index + 1;

        return vector;
    };

    Vector.pushPoint = function pushPoint(result, point) {
        result.push(point);

        return result;
    }
    
    return Vector;
});