Plato - app/widgets/nl.fokkezb.form/lib/deepExtend.js

/**
 * Node.JS module "Deep Extend"
 * Recursive object extending.
 * Viacheslav Lotsmanov (unclechu) <lotsmanov89@gmail.com>
 *
 *     The MIT License (MIT)
 *
 *     Copyright (c) 2013 Viacheslav Lotsmanov
 *
 *     Permission is hereby granted, free of charge, to any person obtaining a copy of
 *     this software and associated documentation files (the "Software"), to deal in
 *     the Software without restriction, including without limitation the rights to
 *     use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 *     the Software, and to permit persons to whom the Software is furnished to do so,
 *     subject to the following conditions:
 *    
 *     The above copyright notice and this permission notice shall be included in all
 *     copies or substantial portions of the Software.
 * 
 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 *     FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 *     COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 *     IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *     CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 * @class Widgets.nlFokkezbForm.lib.deepExtend
 */

/**
 * Extening object that entered in first argument.
 * Returns extended object or false if have no target object or incorrect type.
 * If you wish to clone object, simply use that:
 *  deepExtend({}, yourObj_1, [yourObj_N]) - first arg is new empty object
 */
var deepExtend = module.exports = function (/*obj_1, [obj_2], [obj_N]*/) {
    if (arguments.length < 1 || typeof arguments[0] !== 'object') {
        return false;
    }

if (arguments.length < 2) return arguments[0];

var target = arguments[0];

// convert arguments to array and cut off target object
    var args = Array.prototype.slice.call(arguments, 1);

var key, val, src, clone, tmpBuf;

args.forEach(function (obj) {
        if (typeof obj !== 'object') return;

for (key in obj) {
            if ( ! (key in obj)) continue;

src = target[key];
            val = obj[key];

if (val === target) continue;

if (typeof val !== 'object' || val === null || val.apiName) {
                target[key] = val;
                continue;
            } else if (val instanceof Date) {
                target[key] = new Date(val);
                continue;

}/* else if (val instanceof Buffer) {
                tmpBuf = new Buffer(val.length);
                val.copy(tmpBuf);
                target[key] = tmpBuf;
                continue;
            }*/

if (typeof src !== 'object' || src === null) {
                clone = (Array.isArray(val)) ? [] : {};
                target[key] = deepExtend(clone, val);
                continue;
            }

if (Array.isArray(val)) {
                clone = (Array.isArray(src)) ? src : [];
            } else {
                clone = (!Array.isArray(src)) ? src : {};
            }

target[key] = deepExtend(clone, val);
        }
    });

return target;
}

app/widgets/nl.fokkezb.form/lib/deepExtend.js

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