{"json_modified": "2016-03-28T08:02:53.159271", "uuid": "e1d0aea9-d3c0-44e2-b0d5-0f17dae18191", "title": "JSObjectOps.defaultValue", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSObjectOps.defaultValue", "tags": ["Obsolete", "SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2015-01-03T10:54:15", "label": "JSObjectOps.defaultValue", "localization_tags": [], "locale": "en-US", "id": 6999, "last_edit": "2015-01-03T10:54:07", "summary": "The <strong><code>JSObjectOps.defaultValue</code></strong> callback corresponds to the <span class=\"nowiki\">[[DefaultValue]]</span> method defined in <a href=\"https://bclary.com/2004/11/07/#a-8.6.2.6\">ECMA 262-3 \u00a78.6.2.6</a>. Many expressions in the ECMAScript language, such as <code>a+b</code>, involve implicit conversion of the operands using <span class=\"nowiki\">[[DefaultValue]]</span>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Description", "title": "Description"}], "slug": "Mozilla/Projects/SpiderMonkey/JSAPI_reference/JSObjectOps.defaultValue", "review_tags": []}