SpeechGrammar.SpeechGrammar()

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句法
范例
规范
浏览器兼容性
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这是实验性技术
检查浏览器兼容性表格要小心谨慎在生产中使用这之前。

SpeechGrammar constructor of the SpeechGrammar interface creates a new SpeechGrammar 对象实例。

句法

var mySpeechGrammar = new SpeechGrammar();

参数

None.

范例

var grammar = '#JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;'
var recognition = new SpeechRecognition();
var speechRecognitionList = new SpeechGrammarList();
speechRecognitionList.addFromString(grammar, 1);
recognition.grammars = speechRecognitionList;
var newGrammar = new SpeechGrammar();
newGrammar.src = '#JSGF V1.0; grammar names; public <name> = chris | kirsty | mike;'
speechRecognitionList[1] = newGrammar; // should add the new SpeechGrammar object to the list

规范

规范	状态	注释
Web 语音 API The definition of 'SpeechGrammar()' in that specification.	草案

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
`SpeechGrammar()` 构造函数	Chrome 25 Prefixed 25 Prefixed Prefixed Implemented with the vendor prefix: webkit	Edge 79 Prefixed 79 Prefixed Prefixed Implemented with the vendor prefix: webkit	Firefox 44 Disabled 44 Disabled Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out. Disabled ). To change preferences in Firefox, visit about:config.	IE No	Opera 27	Safari No	WebView Android No	Chrome Android 64 Prefixed 64 Prefixed Prefixed Implemented with the vendor prefix: webkit	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 9.0 Prefixed 9.0 Prefixed Prefixed Implemented with the vendor prefix: webkit

图例

完整支持
不支持
实验。期望将来行为有所改变。

用户必须明确启用此特征。
要求使用供应商前缀或不同名称。

另请参阅

Web 语音 API

元数据

最后修改： 2019 年 3 月 23 日

在此页

句法

参数

范例

规范

浏览器兼容性

图例

另请参阅

相关话题