{"json_modified": "2016-10-11T19:44:33.804831", "uuid": "d9498b32-c530-4cea-9637-4eb82c411a26", "title": "Headers.get()", "url": "/en-US/docs/Web/API/Headers/get", "tags": ["API", "Fetch", "Reference", "Experimental", "R\u00e9f\u00e9rence", "Exp\u00e9rimental", "Method"], "translations": [{"uuid": "f489610f-50ee-42e4-90e1-fe68353c207e", "title": "Headers.get()", "url": "/zh-CN/docs/Web/API/Headers/get", "tags": ["get()"], "summary": "<strong><code>get()</code></strong>\u00a0\u65b9\u6cd5\u4eceHeaders\u5bf9\u8c61\u4e2d\u8fd4\u56de\u6307\u5b9aheader\u7684\u7b2c\u4e00\u4e2a\u503c.\u00a0\u5982\u679cHeader\u5bf9\u8c61\u4e2d\u4e0d\u5b58\u5728\u8bf7\u6c42\u7684header,\u5219\u8fd4\u56de\u00a0<code>null</code>.", "localization_tags": [], "locale": "zh-CN", "last_edit": "2016-09-01T01:21:09", "review_tags": []}], "modified": "2016-10-11T19:40:47", "label": "Headers.get()", "localization_tags": [], "locale": "en-US", "id": 144247, "last_edit": "2015-10-19T21:25:17", "summary": "The <strong><code>get()</code></strong> method of the <a href=\"/en-US/docs/Web/API/Headers\" title=\"The Headers interface of the Fetch API&#xA0;allows you to perform various actions on HTTP request and response headers. These actions include retrieving, setting, adding to, and removing. A Headers object has an associated header list, which is initially empty and consists&#xA0;of zero or more name and value pairs. &#xA0;You can add to this using methods like append() (see Examples.)&#xA0;In all methods of this interface, header names are matched by case-insensitive byte sequence.\"><code>Headers</code></a> interface returns the first value of a given header from within a <code>Headers</code> object. If the requested header doesn't exist in\u00a0the <code>Headers</code> object, the call\u00a0returns <code>null</code>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Returns", "title": "Returns"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/Headers/get", "review_tags": []}