Obsolete since JSAPI 26
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
This article covers features introduced in SpiderMonkey 1.8
Callback for creating iterators.
Syntax
typedef JSObject * (*JSIteratorOp)(JSContext *cx, JSObject *obj, JSBool keysonly);
| Name | Type | Description | 
|---|---|---|
| cx | JSContext * | Pointer to the JS context in which the iterator creation should take place. | 
| obj | JSObject * | Pointer to the object to iterate over. | 
| keysonly | JSBool | If true, the iterator should yield keys only, not [key, value] pairs. | 
Description
The JavaScript engine calls the JSExtendedClass.iteratorObjectNULL if an error or exception occurred on cx.