未捕获的TypeError:SpeechRecognition不是app.js:5的构造函数

时间:2019-06-12 21:26:37

标签: javascript html ecmascript-6 speech-recognition

我正在编码语音重组助手以使其在我的网页上工作,但出现此错误:Uncaught TypeError:SpeechRecognition不是app.js:5的构造函数(我正在使用Google Chrome浏览器)。< / p>

const btn = document.querySelector('.talk');
const content = document.querySelector('.content');

const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechrecognition;
const recognition = new SpeechRecognition(); 

recognition.onstart = function() {
   console.log('Voice Is Activated, You Can Speak');
};

recognition.onresult = function(event) {
   console.log(event);
};

btn.addEventListener('click', () => {
   recognition.start();
});
<!DOCTYPE html>
<html lang="en">
   <head>
      <meta charset="UTF-8">
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <meta http-equiv="X-UA-Compatible" content="ie=edge">
      <title>MY ASSISTANT</title>
   </head>
   <body>
      <h1>Hello World</h1>
      <img src="#" alt=""></img>
      <button class="talk">Talk</button>
      <h1 class="content"></h1>

      <script src="app.js"></script>
   </body>
</html>

4 个答案:

答案 0 :(得分:1)

您需要确保保留正确的大写字母-webkitSpeechRecognition(大写的R)。

const SpeechRecognition = window.speechRecognition || window.webkitSpeechRecognition;
console.log(new SpeechRecognition());

答案 1 :(得分:0)

找到了一个解决方案,让变量为webkitSpeechRecognition,不带||。操作员。因为Google实际上使用带有前缀WebKit的此构造函数。

答案 2 :(得分:0)

SpeechRecognition不存在。

尝试使用webkitSpeechRecognition。它对我有用。

这是针对Chrome浏览器客户端的

答案 3 :(得分:-2)

如果您在Firefox中运行,则

不支持SpeechRecognition