Ext JS 学习笔记

/**

 * Clone Function

 * @param { /Array} o   or array to clone

 * @return { /Array} Deep clone of an   or an array

 * @author Ing. Jozef Sakáloš

 */

Ext.ux.util.clone = function(o) {

    if(!o || ' ' !== typeof o) {

        return o;

    }

    if('function' === typeof o.clone) {

        return o.clone();

    }

    var c = '[  Array]' ===  .prototype.toString.call(o) ? [] : {};

    var p, v;

    for(p in o) {

        if(o.hasOwnProperty(p)) {

            v = o[p];

            if(v && ' ' === typeof v) {

                c[p] = Ext.ux.util.clone(v);

            }

            else {

                c[p] = v;

            }

        }

    }

    return c;

}; // eo function clone