ChartJS v3 与 TypeScript 和 Webpack 的结合使用

Question

直到 release 2.9.4, I used ChartJS in combination with @types/chart.js 才能获得 TypeScript 支持的所有类型。我使用 Webpack 和 TypeScript 的最小工作示例如下所示：

package.json:

{
  "devDependencies": {
    "@types/chart.js": "^2.9.31",
    "ts-loader": "^8.1.0",
    "typescript": "^4.2.3",
    "webpack": "^5.30.0",
    "webpack-cli": "^4.6.0",
    "webpack-dev-server": "^3.11.2"
  },
  "dependencies": {
    "chart.js": "^2.9.4"
  }
}

tsconfig.json:

{
  "compilerOptions": {
    "esModuleInterop": true,
  },
}

webpack.config.json:

module.exports = {
  entry: {
    main: "./main.ts",
  },
  module: {
    rules: [
      {
        test: /\.ts$/,
        loader: "ts-loader",
        exclude: /node_modules/,
      },
    ],
  },
};

main.ts:

import Chart from "chart.js";

new Chart("chart", {
  type: 'line',
  data: {
    labels: ['Label 1', 'Label 2', 'Label 3'],
    datasets: [{
      label: "Dataset 1",
      data: [1, 2, 3],
    }]
  },
});

index.html:

<!DOCTYPE html>
<html>
  <body>
    <canvas id="chart"></canvas>
    <script src="main.js"></script>
  </body>
</html>

但在更新到 version 3.0.0, this doesn't work anymore (I removed @types/chart.js because chart.js 后自该版本发布以来有自己的类型）：

npx webpack serve --mode development

ERROR in [...]/chartjs/main.ts
./main.ts 3:4-9
[tsl] ERROR in [...]/chartjs/main.ts(3,5)
      TS2351: This expression is not constructable.
  Type 'typeof import("[...]/chartjs/node_modules/chart.js/types/index.esm")' has no construct signatures.

但是由于内置 class Chart 实际上有一个 constructor，我不太明白这个问题以及如何解决它。将 ChartJS 版本 3 与 Webpack 和 TypeScript 结合使用的预期方式是什么？

提前感谢您提供的任何提示，让我在这里找到正确的方向！

Answer 1

Chart.js3是tree-shakeable，所以需要导入注册你要用到的控制器，元素，秤和插件

Please take a look at Bundlers (Webpack, Rollup, etc.) from the Chart.js documentation.

ChartJS v3 与 TypeScript 和 Webpack 的结合使用

Usage of ChartJS v3 with TypeScript and Webpack

javascript

typescript

webpack

chart.js

chart.js3