Alternative ways to require or build plotly.js

Depending on your needs you may require/import one of the distributed plotly.js packages or a plotly.js/lib index file and integrate it into your application.

The sections below provide additional info in respect to alternative building frameworks.

Angular CLI

Since Angular uses webpack under the hood and doesn't allow easily to change it's webpack configuration, there is some work needed using a custom-webpack builder to get things going.

Install @angular-builders/custom-webpack and ify-loader@v1.1.0+
Create a new extra-webpack.config.js beside angular.json.

extra-webpack.config.json

module.exports = {
    module: {
        rules: [
            {
                test: /\.js$/,
                include: [
                    path.resolve(__dirname, "node_modules/plotly.js")
                ],
                loader: 'ify-loader'
            }
        ]
    },
};

Change the builder in angular.json to "@angular-builders/custom-webpack:browser and configure it correctly to use our new webpack config.

angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "MY_PROJECT_NAME": {
      "root": "",
      "sourceRoot": "src",
      "projectType": "application",
      "prefix": "app",
      "schematics": {
        "@schematics/angular:component": {
          "styleext": "scss"
        }
      },
      "architect": {
        "build": {
          "builder": "@angular-builders/custom-webpack:browser",
          "options": {
            ....
            "customWebpackConfig": {
              "path": "./extra-webpack.config.js",
              "replaceDuplicatePlugins": true,
              "mergeStrategies": {"module.rules":  "merge"}
            }
          }
        }
...

It's important to set `projects.x.architect.build.builder` and `projects.x.architect.build.options.customWebpackConfig`. If you have more projects in your `angular.json` make sure to adjust their settings accordingly.

Uh oh!