如何让 JavaScript 发出哔哔声? [英] How do I make JavaScript beep?

问题描述

我希望我的网页在用户超过我的 <textarea> 的最大字符限制时发出哔哔声.

I want my web page to beep whenever a user exceeds the maximum character limit of my <textarea>.

推荐答案

无法直接在 JavaScript 中执行.您需要在 HTML 中嵌入一个简短的 WAV 文件，然后通过代码播放.

It's not possible to do directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.

一个例子:

<script>
function PlaySound(soundObj) {
  var sound = document.getElementById(soundObj);
  sound.Play();
}
</script>

<embed src="success.wav" autostart="false" width="0" height="0" id="sound1"
enablejavascript="true">

然后您可以从 JavaScript 代码中调用它:

You would then call it from JavaScript code as such:

PlaySound("sound1");

这应该完全符合您的要求 - 您只需要自己查找/创建哔声，这应该是微不足道的.

This should do exactly what you want - you'll just need to find/create the beep sound yourself, which should be trivial.

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