{"json_modified": "2016-03-28T08:28:45.950657", "uuid": "b0bb97e9-8b72-4285-aeab-a13ac45c38b9", "title": "Coordinates.speed", "url": "/en-US/docs/Web/API/Coordinates/speed", "tags": ["Coordinates", "Property", "API", "Geolocation API"], "translations": [{"uuid": "f2754c8e-d216-45a8-96fa-9a3843b030a0", "title": "Coordinates.speed", "url": "/zh-TW/docs/Web/API/Coordinates/speed", "tags": [], "summary": "<code><strong>Coordinates.speed</strong></code> \u56de\u50b3\u552f\u8b80\u7684\u6b63\u8907\u6578\u4ee3\u8868\u901f\u5ea6\uff0c\u55ae\u4f4d\u70ba\u516c\u5c3a/\u79d2\u3002 \u5982\u679c\u88dd\u7f6e\u7121\u6cd5\u6e2c\u91cf\u9019\u500b\u503c\u5247\u56de\u50b3 null\u3002", "localization_tags": [], "locale": "zh-TW", "last_edit": "2016-03-22T23:47:20", "review_tags": []}], "modified": "2015-08-11T02:51:38", "label": "Coordinates.speed", "localization_tags": [], "locale": "en-US", "id": 81039, "last_edit": "2015-08-11T02:51:35", "summary": "The <code><strong>Coordinates.speed</strong></code> read-only property is a <code>double</code> representing the velocity of the device in meters per second. This value is <code>null</code> if the implementation is not able to measure it.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/Coordinates/speed", "review_tags": []}