es6-collections-augmentation.js

/**
 * Created by edelacruz on 2/17/14.
 * A shim for generating map objects for hash maps and array maps
 * (arrays of 2 item arrays [0] 'key', [1] 'value')
 */
define(['es6-shim', 'checkjs'], function (_namespace) {

    function fromArray (arrayMap, recursive) {
        recursive = recursive || false;
        var map = new Map(), value;
        arrayMap.forEach(function(x) {
            value = classOfIs(x[1], 'Array') && recursive ? fromArray(x[1]) : x[1];
            map.set(x[0], value);
        });
        return map;
    }
    
    function fromHashMap (hashMap, recursive) {
        recursive = recursive || false;
        var map = new Map(), value;
        Object.keys(hashMap).forEach(function(x) {
            value = classOfIs(x[1], 'Object') && recursive ? fromHashMap(x[1]) : x[1];
            map.set(x[0], value);
        });
        return map;
    }

    Map.prototype.fromArrayMap = fromArray;

    Map.prototype.fromHashMap = fromHashMap;

    Map.prototype._namespace = _namespace;

    Set.prototype.fromArray = function () {
        var arg0 = arguments[0],
            _set = new Set();
        if (classOfIs(arg0, 'Array')) {
            arg0.forEach(function (x) { _set.add(x); });
        }
        else {
            argsToArray(arguments).forEach(function (x) {_set.add(x)});
        }
        return _set;
    }
});