问题
I am writing a WebRTC application and have the following problem:
I want to use the adapter.js library.
I have the following index.html:
<html>
<header>
<script src='../out/adapter.js'></script>
<script src='../out/main.js'></script>
</header>
<body>
<video id="localVideo" width='500' autoplay></video>
</body>
</html>
and my main.js looks like:
var adapter=require('webrtc-adapter');
var localVideo=document.querySelector('video#localVideo');
navigator.getUserMedia(media_constraints, handleUserMedia, handleUserMediaError);
function handleUserMedia(stream) {
localStream = stream;
adapter.attachMediaStream(localVideo, stream);
console.log('Adding local stream.');
}
but my browser logs the error: Uncaught ReferenceError: require is not defined
回答1:
require is used (and defined) in Node.js environments to load modules. (Not exclusively, for more information check here).
If you downloaded an adapter.js version from here and include it the way you do (via script tags), you can simple delete the require(...) line and you should be good to go.
Edit: added an example
console.log(adapter.browserDetails.browser);<script src="http://webrtc.github.io/adapter/adapter-latest.js"></script>回答2:
if you have checked installing adapter js? check
npm webrtc-adapter --version
if not showing up in node, install it to your app
npm install --save webrtc-adapter
来源：https://stackoverflow.com/questions/37550269/how-to-use-adapter-js-of-webrtc-adapter