Document.characterSet

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Document.characterSet read-only property returns the character encoding of the document that it's currently rendered with. (A character encoding is a set of characters and how to interpret bytes into those characters.)

A “character set” and a “character encoding” are related, but different. Despite the name of this property, it returns the encoding .

Users can override the developer-specified encoding inside the Content-Type header or inline like <meta charset="utf-8"> , such as with Firefox's View → Text Encoding menu. This override is provided to fix incorrect developer-specified encodings that result in garbled text .

特性 document.charset and document.inputEncoding are legacy aliases for document.characterSet . Do not use them any more.

句法

var string = document.characterSet;

范例

<button onclick="console.log(document.characterSet);">
  Log character encoding
</button>
<!-- displays document's character encoding in the dev console, such as "ISO-8859-1" or "UTF-8" -->

规范

规范	状态	注释
DOM The definition of 'characterSet' in that specification.	实时标准	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`characterSet`	Chrome 1 1 1 Alternate Name `charset` alias was made read-only in Chrome 45. Alternate Name Uses the non-standard name: `charset` 1 Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Edge ≤79 ≤79 ≤79 Alternate Name Alternate Name Uses the non-standard name: `charset` ≤79 Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Firefox Yes Yes 44 Alternate Name Alternate Name Uses the non-standard name: `charset` Yes Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	IE ? ? ? Alternate Name Alternate Name Uses the non-standard name: `charset` ? Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Opera Yes Yes ? Alternate Name Alternate Name Uses the non-standard name: `charset` ? Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Safari Yes Yes 9 Alternate Name Alternate Name Uses the non-standard name: `charset` ? Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	WebView Android 45 45 Yes Alternate Name `charset` alias was made read-only in WebView 45. Alternate Name Uses the non-standard name: `charset` Yes Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Chrome Android 45 45 Yes Alternate Name `charset` alias was made read-only in Chrome 45. Alternate Name Uses the non-standard name: `charset` Yes Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Firefox Android Yes Yes 44 Alternate Name Alternate Name Uses the non-standard name: `charset` Yes Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Opera Android Yes Yes ? Alternate Name Alternate Name Uses the non-standard name: `charset` ? Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Safari iOS Yes Yes ? Alternate Name Alternate Name Uses the non-standard name: `charset` ? Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`	Samsung Internet Android 5.0 5.0 Yes Alternate Name `charset` alias was made read-only in Samsung Internet 5.0. Alternate Name Uses the non-standard name: `charset` Yes Alternate Name Alternate Name Uses the non-standard name: `inputEncoding`

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元数据

最后修改： Mar 18, 2019

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