Quagga javascript barcode scanner - Uncaught TypeError: Quagga.init is not a function

Question

我正在尝试编写一些原始 javascript 代码来从我的网站进行条形码扫描，但是我什至无法通过使用 Quagga javascript library 的第一步。我的代码目前是这样的：

<!DOCTYPE html>
<html lang="en">
  <head>
    <title>Quagga Test</title>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <meta name="description" content="" />
    <meta name="viewport" content="width=device-width; initial-scale=1.0; user-scalable=no" />
    <script src="https://code.jquery.com/jquery-1.9.0.min.js" integrity="sha256-f6DVw/U4x2+HjgEqw5BZf67Kq/5vudRZuRkljnbF344=" crossorigin="anonymous"></script>
    <script src="https://webrtc.github.io/adapter/adapter-latest.js" type="text/javascript"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/quagga/1.0.0-beta.1/quagga.js"></script>
  </head>
  <body>
    <div id="interactive" class="viewport">
        <video autoplay="true" preload="auto"></video>
    </div>
    <script type="text/javascript">
      Quagga.init({
        inputStream : {
          name : "Live",
          type : "LiveStream",
          target: document.querySelector('#interactive'),
          constraints: {
            width: 520,
            height: 400,
            facingMode: "environment"  //"environment" for back camera, "user" front camera
          }
        },
        decoder : {
           readers : ["code_39_reader"]
        }
      }, function(err) {
        if (err) {
          console.log(err);
          return
        }
        console.log("Initialization finished. Ready to start");
        Quagga.start();
        Quagga.onDetected(function(result) {
          console.log(result.codeResult.code);
        });
      });
    </script>
  </body>
</html>

这给了我错误：

Uncaught TypeError: Quagga.init is not a function

有谁知道我需要做什么才能使 Quagga 网站的初始步骤在原版中运行 Javascript？

不确定是否与此有关：

const Quagga = require('quagga').default; // Common JS (important: default)

但这给出了错误：

Uncaught ReferenceError: require is not defined

Answer 1

结果我不得不改用 https://cdnjs.cloudflare.com/ajax/libs/quagga/0.12.1/quagga.min.js。

Quagga javascript barcode scanner - Uncaught TypeError: Quagga.init is not a function

Quagga javascript barcode scanner - Uncaught TypeError: Quagga.init is not a function

javascript

barcode-scanner

quagga

quaggajs