Babel Plugin Configuration Utility

Build a utility that configures Babel to transform computed properties with different transformation strategies.

Requirements

Create a module that exports a function createBabelConfig which generates Babel configuration objects for transforming computed property syntax. The function should accept a configuration mode parameter and return appropriate Babel plugin configurations.

Configuration Modes

The utility should support two distinct transformation modes:

Standard Mode:

• Uses the default transformation strategy
• Produces spec-compliant output
• Suitable for environments requiring strict standards compliance

Relaxed Mode:

• Uses a simpler transformation strategy
• Produces more performant output
• Suitable for modern runtime environments

Function Behavior

The createBabelConfig function should:

• Accept a mode parameter ('standard' or 'relaxed')
• Return a valid Babel configuration object with appropriate plugins array
• Configure the computed properties plugin with the correct options for each mode
• Throw an error if an invalid mode is provided

Test Cases

• Calling createBabelConfig('standard') returns a configuration with the computed properties plugin using default settings @test
• Calling createBabelConfig('relaxed') returns a configuration with the computed properties plugin using simplified transformation settings @test
• Calling createBabelConfig('invalid') throws an error with a descriptive message @test
• The returned configuration for standard mode produces spec-compliant output when transforming computed properties @test
• The returned configuration for relaxed mode produces simplified output when transforming computed properties @test

Implementation

@generates

API

/**
 * Creates a Babel configuration for computed property transformation
 *
 * @param {string} mode - Transformation mode: 'standard' or 'relaxed'
 * @returns {object} Babel configuration object with plugins array
 * @throws {Error} If mode is not 'standard' or 'relaxed'
 */
function createBabelConfig(mode) {
  // IMPLEMENTATION HERE
}

module.exports = { createBabelConfig };

Dependencies { .dependencies }

@babel/plugin-transform-computed-properties { .dependency }

Provides computed property transformation capabilities with configurable transformation strategies.