{"json_modified": "2016-05-03T12:54:06.807608", "uuid": "ff3ab4cf-288a-49fb-907b-34dd238a4feb", "title": "ChromeWorker", "url": "/en-US/docs/Web/API/ChromeWorker", "tags": ["Extensions", "API", "Workers", "js-ctypes", "Add-ons", "add-ons"], "translations": [], "modified": "2016-05-03T12:54:07", "label": "ChromeWorker", "localization_tags": [], "locale": "en-US", "id": 5526, "last_edit": "2016-05-03T12:54:03", "summary": "If you're developing privileged code, and would like to create a worker that can use <a href=\"/en/js-ctypes\" title=\"en/js-ctypes\">js-ctypes</a> to perform calls to native code, you can do so by using <code>ChromeWorker</code> instead of the standard <a href=\"/en-US/docs/Web/API/Worker\" title=\"The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker()&#xA0;constructor and specifying a script to be run in the worker thread.\"><code>Worker</code></a> object. It works exactly like a standard <a href=\"/en-US/docs/Web/API/Worker\" title=\"The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker()&#xA0;constructor and specifying a script to be run in the worker thread.\"><code>Worker</code></a>, except that it has access to <a href=\"/en/js-ctypes\" title=\"en/js-ctypes\">js-ctypes</a> via a global <code>ctypes</code> object available in the global scope of the worker. Examples of ChromeWorker's using js-ctypes are availabe on Github and are linked to from the <a href=\"#seealso\">See Also section below</a>. To use a postMessage with callback version of ChromeWorker that features promises, see <a href=\"/en-US/docs/Web/API/PromiseWorker\">PromiseWorker</a>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Summary", "title": "Summary"}, {"id": "See_Also", "title": "See Also"}], "slug": "Web/API/ChromeWorker", "review_tags": []}