import webpack from "webpack";

new webpack.BannerPlugin(banner);
// or
new webpack.BannerPlugin(options);

{
  banner: string | function, // the banner as string or function, it will be wrapped in a comment
  raw: boolean, // if true, banner will not be wrapped in a comment
  entryOnly: boolean, // if true, the banner will only be added to the entry chunks
  test: string | RegExp | [string, RegExp], // Include all modules that pass test assertion.
  include: string | RegExp | [string, RegExp], // Include all modules matching any of these conditions.
  exclude: string | RegExp | [string, RegExp], // Exclude all modules matching any of these conditions.
  footer?: boolean, // if true, the banner will be placed at the end of the compilation
  stage?: number, // the stage of the compilation in which the banner should be injected
}

import webpack from "webpack";

// string
new webpack.BannerPlugin({
  banner: "hello world",
});

// function
new webpack.BannerPlugin({
  banner: (yourVariable) => `yourVariable: ${yourVariable}`,
});

// It will add the banner message after minimizers and any asset manipulation
new webpack.BannerPlugin({
  raw: true,
  banner: "/* banner is a string */",
  stage: webpack.Compilation.PROCESS_ASSETS_STAGE_REPORT,
});

import webpack from "webpack";

new webpack.BannerPlugin({
  banner:
    "fullhash:[fullhash], chunkhash:[chunkhash], name:[name], filebase:[filebase], query:[query], file:[file]",
});