ChartJS v3 与 TypeScript 和 Webpack 的使用

Question

Up until release 2.9.4 , I used ChartJS in combination with @types/chart.js to get all the types for TypeScript support.直到2.9.4 版本，我结合使用 ChartJS 和@types/chart.js来获取 TypeScript 支持的所有类型。 My working minimal example with Webpack and TypeScript looks as follows:我使用 Webpack 和 TypeScript 的最小工作示例如下所示：

package.json: 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: tsconfig.json：

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

webpack.config.json: webpack.config.json：

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

main.ts: 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:索引.html：

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

But after updating to version 3.0.0 , this doesn't work anymore (I removed @types/chart.js because chart.js ships its own types since that release):但是在更新到版本 3.0.0之后，这不再起作用（我删除了@types/chart.js ，因为chart.js自该版本以来发布了自己的类型）：

npx webpack serve --mode development npx webpack 服务 --mode 开发

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.

But since the inbuilt class Chart does in fact have a constructor , I don't really understand the problem and how to fix it.但由于内置的 class Chart实际上有一个构造函数，我不太明白这个问题以及如何解决它。 What is the intended way of using ChartJS version 3 in combination with Webpack and TypeScript?将 ChartJS 版本 3 与 Webpack 和 TypeScript 结合使用的预期方式是什么？

Thanks in advance for any tip which leads me into the right direction here!在此先感谢您提供的任何提示，这些提示将我引向正确的方向！

Answer 1

Chart.js 3 is tree-shakeable , so it is necessary to import and register the controllers, elements, scales and plugins you are going to use. Chart.js 3 是tree-shakeable ，因此需要导入和注册您将要使用的控制器、元素、比例和插件。

Please take a look at Bundlers (Webpack, Rollup, etc.) from the Chart.js documentation.请查看 Chart.js 文档中的Bundlers（Webpack、Rollup 等）。

ChartJS v3 与 TypeScript 和 Webpack 的使用

问题描述

1 个解决方案

解决方案1
1 已采纳 2021-04-05 13:42:31

ChartJS v3 与 TypeScript 和 Webpack 的使用

问题描述

1 个解决方案

解决方案1 1 已采纳 2021-04-05 13:42:31

解决方案1
1 已采纳 2021-04-05 13:42:31