JS_GetConstructor 编辑
Retrieves the constructor for an object.
Syntax
JSObject *
JS_GetConstructor(JSContext *cx, JS::Handle<JSObject*> proto);
Name | Type | Description |
---|---|---|
cx | JSContext * | A context. Requires request. In a JS_THREADSAFE build, the caller must be in a request on this JSContext . |
obj | JS::Handle<JSObject*> | The object whose constructor is to be returned. |
Description
JS_GetConstructor
retrieves the constructor
property of a given object, obj
. If the result is a Function
object, JS_GetConstructor
returns a pointer to that object. Otherwise, it reports an error and returns NULL
.
To get an object's prototype, use JS_GetPrototype
. To get an object's parent, use JS_GetParent
.
See Also
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论