{"json_modified": "2016-03-28T08:15:02.674787", "uuid": "4d82ad87-0d7e-4eb4-b06f-58d76d0cdef7", "title": "JS_AlreadyHasOwnProperty", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_AlreadyHasOwnProperty", "tags": ["SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2015-01-01T02:53:30", "label": "JS_AlreadyHasOwnProperty", "localization_tags": [], "locale": "en-US", "id": 17281, "last_edit": "2015-01-01T02:53:23", "summary": "These functions attempt to determine whether a property already exists on a specific <code>JSObject</code> without modifying the object. By design, this search may not find a property that other property lookup functions, such as <a href=\"/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_LookupProperty\" title=\"Determine if a specified property exists.\"><code>JS_LookupProperty</code></a>, would find.", "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_AlreadyHasOwnProperty", "review_tags": []}