ExtJs 提供的 javascript克隆对象的方法
/*** Clone Function
* @param {Object/Array} o Object or array to clone
* @return {Object/Array} Deep clone of an object or an array
* @author Ing. Jozef Sakáloš
*/
Ext.ux.util.clone = function(o) {
if(!o || 'object' !== typeof o) {
return o;
}
if('function' === typeof o.clone) {
return o.clone();
}
var c = '' === Object.prototype.toString.call(o) ? [] : {};
var p, v;
for(p in o) {
if(o.hasOwnProperty(p)) {
v = o[p];
if(v && 'object' === typeof v) {
c[p] = Ext.ux.util.clone(v);
}
else {
c[p] = v;
}
}
}
return c;
}; // eo function clone
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