babel-preset-kyt-core

babel-preset-kyt-core

An opinionated Babel preset, best used with kyt.

This preset is used as a default if a kyt project does not include a .babelrc It is also included as part of babel-preset-kyt-react

To install:

1. npm install babel-preset-kyt-core --save
2. In babelrc:

  {
    presets: [
      "babel-preset-kyt-core"
    ]
  }

Options

(see documentation for Babel preset options)

• includeRuntime (Boolean) - whether or not to include babel-plugin-transform-runtime; default: false

CHANGELOG

0.3.0-alpha.6 - 10/06/17

• Adds babel-preset-env useBuiltIns option to take advantage of only polyfilling server builds. To take advantage of this functionality, you need to add babel-polyfill as a dependency and import it at the top of src/server/index.js.

0.3.0-alpha.5 - 10/03/17

• Adds babel-preset-env useBuiltIns option to take advantage of only polyfilling what's needed. To take advantage of this functionality, you need to add babel-polyfill as a dependency and import it at the top of src/client/index.js.

0.3.0-alpha.4 - 09/19/17

• Removes default node environment when KYT_ENV_TYPE=test.

0.3.0-alpha.3 - 09/19/17

• Adds KYT_ENV_TYPE=test support for test runs. Similar to the client/server options, the test option can be overridden in envOptions.

0.3.0-alpha.2 - 09/18/17

• Fixes bugs introduced in the 0.3.0-alpha.1 release where user envOptions overrides were not being deeply merged and the uglify option was not nested in the targets param.

0.3.0-alpha.1 - 09/17/17

• Replaces babel-preset-latest with babel-preset-env. By default, the following client preset-env browser targets are used:

modules: false,
targets: {
  browsers: ['>1%', 'last 4 versions', 'not ie < 11']
}

Which at the timing of this release, targets the following browsers/OSs:

{
  "chrome": "49",
  "android": "4.2",
  "edge": "12",
  "firefox": "52",
  "ie": "11",
  "ios": "9",
  "safari": "9"
}

If you need to target the server, then you can set process.env.KYT_ENV_TYPE to server. The following preset-env server targets are used:

modules: false,
targets: {
  node: true
}

You can extend the default preset-env client/server targets by passing in your own options into a .babelrc configuration under a envOptions key. For example:

{
  "presets": [
    [
      "kyt-core", {
        "envOptions": {
          "client": {
            "debug": true,
            "targets": {
              "browsers": ["last 2 versions"]
            }
          },
          "server": {
            "modules": true,
            "targets": { "node": false }
          },
        },
      },
    ],
  ],
}

0.2.0 - 03/23/17

• Includes babel-plugin-syntax-dynamic-import to allow parsing of dynamic import().