{"json_modified": "2016-03-28T08:41:33.518921", "uuid": "a394493e-6af3-4624-960c-dfc80ef2aa05", "title": "JSHasInstanceOp", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSHasInstanceOp", "tags": ["R\u00e9f\u00e9rence", "Reference", "SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2015-01-18T15:11:39", "label": "JSHasInstanceOp", "localization_tags": [], "locale": "en-US", "id": 133137, "last_edit": "2015-01-18T15:11:27", "summary": "<strong><code>JSHasInstanceOp</code></strong> is called to check whether <code>v</code> is an instance of <code>obj</code>. Return <code>false</code> on error or exception, <code>true</code> on success with <code>true</code> in <code>*bp</code> if <code>v</code> is an instance of <code>obj</code>, <code>false</code> in <code>*bp</code> otherwise.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Description", "title": "Description"}, {"id": "JSClass_hooks", "title": null}, {"id": "See_Also", "title": "See Also"}], "slug": "Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSHasInstanceOp", "review_tags": ["technical"]}