old_contents: // Copyright 2017-2022, University of Colorado Boulder
  
  /**
   * Handles transpilation of code using Babel
   *
   * @author Sam Reid (PhET Interactive Simulations)
   */
  
  
  // modules
  const babel = require( '@babel/core' ); // eslint-disable-line require-statement-match
  
  /**
   * Transpile some code to be compatible with the browsers specified below
   * @public
   *
   * @param {string} jsInput
   * @param {boolean} [forIE=false] - whether the jsInput should be transpiled for Internet Explorer
   * @returns {string} - The transpiled code
   */
  module.exports = function( jsInput, forIE = false ) {
  
    // See options available at https://babeljs.io/docs/usage/api/
  
    // This list specifies the target browsers for Babel. Its format is described at https://browsersl.ist.
    // Note that this is related to System Requirements advertised on the PhET website, so should be modified with care.
    // Never remove advertised platforms from this list without a broader discussion. And note that PhET will sometimes
    // provide unofficial support for older platforms, so version numbers may be lower than what is advertised on the
    // PhET website. For more history, see https://github.com/phetsims/chipper/issues/1323.
    const browsers = [
      'defaults',
      'safari >= 13',
      'iOS >= 13'
    ];
    if ( forIE ) {
      browsers.push( 'IE 11' );
    }
  
    return babel.transform( jsInput, {
      // Avoids a warning that this gets disabled for >500kb of source. true/false doesn't affect the later minified size, and
      // the 'true' option was faster by a hair.
      compact: true,
  
      // Use chipper's copy of babel-preset-env, so we don't have to have 30MB extra per sim checked out.
      // This strategy is also used in Transpiler.js
      presets: [ [ '../chipper/node_modules/@babel/preset-env', {
  
        // Parse as "script" type, so "this" will refer to "window" instead of being transpiled to `void 0` aka undefined
        // see https://github.com/phetsims/chipper/issues/723#issuecomment-443966550
        modules: false,
        targets: {
          browsers: browsers
        }
      } ] ]
    } ).code;
  };
  
new_contents: // Copyright 2017-2022, University of Colorado Boulder
  
  /**
   * Handles transpilation of code using Babel
   *
   * @author Sam Reid (PhET Interactive Simulations)
   */
  
  
  // modules
  const babel = require( '@babel/core' ); // eslint-disable-line require-statement-match
  
  /**
   * Transpile some code to be compatible with the browsers specified below
   * @public
   *
   * @param {string} jsInput
   * @param {boolean} [forIE=false] - whether the jsInput should be transpiled for Internet Explorer
   * @returns {string} - The transpiled code
   */
  module.exports = function( jsInput, forIE = false ) {
  
    // This list specifies the target browsers for Babel. Its format is described at https://browsersl.ist.
    // Note that this is related to System Requirements advertised on the PhET website, so should be modified with care.
    // Never remove advertised platforms from this list without a broader discussion. And note that PhET will sometimes
    // provide unofficial support for older platforms, so version numbers may be lower than what is advertised on the
    // PhET website. For more history, see https://github.com/phetsims/chipper/issues/1323.
    const browsers = [
      'defaults',
      'safari >= 13',
      'iOS >= 13'
    ];
    if ( forIE ) {
      browsers.push( 'IE 11' );
    }
  
    // See options available at https://babeljs.io/docs/usage/api/
    return babel.transform( jsInput, {
  
      // Avoids a warning that this gets disabled for >500kb of source. true/false doesn't affect the later minified size, and
      // the 'true' option was faster by a hair.
      compact: true,
  
      // Use chipper's copy of babel-preset-env, so we don't have to have 30MB extra per sim checked out.
      // This strategy is also used in Transpiler.js
      presets: [ [ '../chipper/node_modules/@babel/preset-env', {
  
        // Parse as "script" type, so "this" will refer to "window" instead of being transpiled to `void 0` aka undefined
        // see https://github.com/phetsims/chipper/issues/723#issuecomment-443966550
        modules: false,
        targets: {
          browsers: browsers
        }
      } ] ]
    } ).code;
  };
  
subject: relocate comment about where to find babel options, https://github.com/phetsims/chipper/issues/1323