{"json_modified": "2016-03-28T08:15:00.798398", "uuid": "d57b64eb-c01b-4c8c-9907-302411becbec", "title": "JS_HasProperty", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_HasProperty", "tags": ["SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2015-01-01T02:14:30", "label": "JS_HasProperty", "localization_tags": [], "locale": "en-US", "id": 17279, "last_edit": "2015-01-01T02:14:23", "summary": "<strong><code>JS_HasProperty</code></strong> searches an object, <code>obj</code>, and its prototype chain, for a property with the specified <code>name</code>. It behaves like the JavaScript expression <code>name in obj</code>. <strong><code>JS_HasUCProperty</code></strong> is the corresponding Unicode API. <strong><code>JS_HasPropertyById</code></strong> is the same but takes a <a href=\"/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/jsid\" title=\"A jsid is a JavaScript property identifier. This type is similar to jsval in representation. The value is always an atomized string, an integer, or (in builds with JS_HAS_XML_SUPPORT) an object.\"><code>JS::HandleId</code></a> for the property name.", "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_HasProperty", "review_tags": []}