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eslint-import-resolver-locals-alias

This is a simple Node.js module import resolution plugin for eslint-plugin-import, which supports native Node.js module resolution, module alias and custom file extensions. Also supports aliases for project modules.

Installation

Prerequisites: Node.js >=6.x and corresponding version of npm.

npm install eslint-plugin-import eslint-import-resolver-locals-alias --save-dev

Usage

Pass this resolver and its parameters to eslint-plugin-import using your eslint config file, .eslintrc or .eslintrc.js.

// .eslintrc.js
module.exports = {
  settings: {
    'import/resolver': {
      alias: {
        map: [
          ['babel-polyfill', 'babel-polyfill/dist/polyfill.min.js'],
          ['helper', './utils/helper'],
          ['material-ui/DatePicker', '../custom/DatePicker'],
          ['material-ui', 'material-ui-ie10'],
          ['@project-module', 'module/path/'],
          ['project-module2', 'module2']
        ],
        extensions: ['.ts', '.js', '.jsx', '.json']
      }
    }
  }
};

Note:

• The alias config object contains two properties, map and extensions, both of which are array types
• The item of map array is also array type which contains 2 string
  • The first string represents the mapped module name or path
  • The second string represents the module alias, the actual module path or name
• The map item ['helper', './utils/helper'] means that the module helper/* will be resolved to ./utils/helper/*. See #3
• The order of 'material-ui/DatePicker' and 'material-ui' cannot be reversed, otherwise the alias rule 'material-ui/DatePicker' does not work
• The default value of extensions property is ['.js', '.json', '.node'] if it is assigned to an empty array or not specified.

If the extensions property is not specified, the config object can be simplified to the map array.

// .eslintrc.js
module.exports = {
  settings: {
    'import/resolver': {
      alias: [
        ['babel-polyfill', 'babel-polyfill/dist/polyfill.min.js'],
        ['helper', './utils/helper'],
        ['material-ui/DatePicker', '../custom/DatePicker'],
        ['material-ui', 'material-ui-ie10'],
        ['@project-module', 'module/path/'],
        ['project-module2', 'module2']
      ]
    }
  }
};

When the config is not a valid object (such as true), the resolver falls back to native Node.js module resolution.

// .eslintrc.js
module.exports = {
  settings: {
    'import/resolver': {
      alias: true
    }
  }
};