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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.