This article needs a technical review. How you can help.
This article covers features introduced in SpiderMonkey 1.8.5
Query [[Extensible]] properly of the given object.
Syntax
bool JS_IsExtensible(JSContext *cx, JS::HandleObject obj, bool *extensible);
| Name | Type | Description |
|---|---|---|
cx |
JSContext * |
The context. Requires request. In a JS_THREADSAFE build, the caller must be in a request on this JSContext. |
obj |
JS::HandleObject |
The object to examine. |
extensible |
bool * |
Out parameter. Receives true if extensible, false otherwise. |
Description
JS_IsExtensible queries [[Extensible]] property of the specified object, obj.
If successful, JS_IsExtensible stores [[Extensible]] property to *extensible and returns true, otherwise returns false and the value of *extensible is undefined.