Skip to content

[Bug]: The documentation for babel-plugin-polyfill-corejs3 seems to have an error description? #164

Open
@limingcan562

Description

💻

  • Would you like to work on a fix?

How are you using Babel?

babel-loader (webpack)

Input code

import 'core-js/stable';

Configuration file name

No response

Configuration

const presets = [
    [
        '@babel/preset-env',
        {
            targets: 'ie 11',
        }
    ]
]
const plugins = [
    [
        'babel-plugin-polyfill-corejs3',
        {
            method: "entry-global", 
            version: require("core-js/package.json").version
        }
    ],
    '@babel/plugin-transform-runtime',
];
module.exports = {plugins, presets};

Current and expected behavior

  • When the value of version is the latest version of core-js (require("core-js/package.json").version), the compiled code is injected with 224 lines.

    require("core-js/modules/es.symbol.js");
    ...
    require("core-js/modules/web.url-search-params.size.js");
  • When I change the version to 3.20, the compiled code is injected with 208 lines.

    require("core-js/modules/es.symbol.js");
    ...
    require("core-js/modules/web.url-search-params.js");

Hello, I am migrating from the old configuration method to the new one.

I see from the documentation

This option only has an effect when used alongside "method": "usage-global" or "method": "usage-pure".

that version only works if you use "method": "usage-global" or "method": "usage-pure".

But when I changed the value of version, I found that it worked. So the version configuration item also acts on "method": "entry-global"?

Environment

System:
OS: macOS 12.2.1
Binaries:
Node: 14.18.1 - /usr/local/bin/node
npm: 6.14.15 - /usr/local/bin/npm
npmPackages:
@babel/cli: ^7.21.0 => 7.21.0
@babel/core: ^7.21.4 => 7.21.4
@babel/plugin-transform-runtime: ^7.21.4 => 7.21.4
@babel/preset-env: ^7.21.4 => 7.21.4
@babel/runtime-corejs3: ^7.21.5 => 7.21.5
babel-loader: ^9.1.2 => 9.1.2
babel-plugin-polyfill-es-shims: ^0.8.0 => 0.8.0
babel-plugin-polyfill-regenerator: ^0.4.1 => 0.4.1
webpack: ^5.81.0 => 5.81.0

Possible solution

No response

Additional context

No response

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions