BrainJS ReferenceError: brain is not defined

Question

我正在学习如何使用 brain.js 使用神经网络的教程，当我尝试运行代码时，它给我一个 ReferenceError: brain is not defined 我已经通过 npm 安装了并在 HTML.

上安装 CDN

const net = new brain.NeuralNetwork({ hiddenLayers: [3] });

const trainingData = [
  { input: [0, 0], output: [0] },
  { input: [0, 1], output: [1] },
  { input: [1, 0], output: [1] },
  { input: [1, 1], output: [0] }
];

net.train(trainingData);

console.log(net.run([0, 0]));

这是 index.html

<!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>Document</title>
    <script src="//unpkg.com/brain.js"></script>

    <script src="index.js"></script>

</head>
<body>

</body>
</html>
````

Answer 1

尝试添加显式协议 https:// 而不是仅使用 //。当我这样做时，您的代码对我有用。

const net = new brain.NeuralNetwork({ hiddenLayers: [3] });

const trainingData = [
  { input: [0, 0], output: [0] },
  { input: [0, 1], output: [1] },
  { input: [1, 0], output: [1] },
  { input: [1, 1], output: [0] }
];

net.train(trainingData);

console.log(net.run([0, 0]));

<!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>Document</title>
    <script src="https://unpkg.com/brain.js"></script>

    <script src="index.js"></script>

</head>
<body>

</body>
</html>

BrainJS ReferenceError: brain is not defined

BrainJS ReferenceError: brain is not defined

javascript

brain.js