{"json_modified": "2016-03-28T08:02:36.710191", "uuid": "d617142b-6bbc-4f1a-b9b1-2de1a78e9b84", "title": "JS_EnterLocalRootScope", "url": "/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_EnterLocalRootScope", "tags": ["Obsolete", "SpiderMonkey", "JSAPI Reference"], "translations": [], "modified": "2014-12-26T23:19:11", "label": "JS_EnterLocalRootScope", "localization_tags": [], "locale": "en-US", "id": 6401, "last_edit": "2014-12-26T23:19:05", "summary": "Scoped local root management allows native functions, getter/setters, etc. to avoid calling <a href=\"/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_AddRoot\" title=\"The JS_Add*Root and functions add a C/C++ variable to the garbage collector's root set, the set of variables used as starting points each time the collector checks to see what memory is reachable. The garbage collector aggressively collects and recycles memory that it deems unreachable, so roots are often necessary to protect data from being prematurely collected.\"><code>JS_AddRoot</code></a> and <a href=\"/en-US/docs/Mozilla/Projects/SpiderMonkey/JSAPI_reference/JS_RemoveRoot\" title=\"JS_RemoveRoot removes the variable that rp points to from the garbage collector's root set.\"><code>JS_RemoveRoot</code></a> to manage global roots temporarily.", "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_EnterLocalRootScope", "review_tags": []}