{"json_modified": "2016-03-28T08:11:50.612768", "uuid": "15dc0db5-0226-437c-b9ee-4b1edb159fd0", "title": "JS_GetInstancePrivate", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_GetInstancePrivate", "tags": ["SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2014-12-29T09:41:06", "label": "JS_GetInstancePrivate", "localization_tags": [], "locale": "en-US", "id": 12516, "last_edit": "2014-12-29T09:40:59", "summary": "<code>JS_GetInstancePrivate</code> determines if a JavaScript object, <code>obj</code>, is an instance of a given <code>JSClass</code>, <code>clasp</code>, and if it is, returns a pointer to the object's private data. Otherwise it returns <code>NULL</code>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Description", "title": "Description"}, {"id": "See_Also", "title": "See Also"}], "slug": "Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_GetInstancePrivate", "review_tags": []}