Multiple ways to handle the platform: switch vs. if...else vs. object

if.js

var getConfigDirectory = function () {
  var platform = process.platform;
  
  if (platform === 'linux') {
    return process.env.XDG_CONFIG_HOME || path.join(home(), '.config')
  }
  else if (platform === 'darwin') {
    return path.join(home(), 'Library', 'Preferences');
  }
  else if (platform === 'win32') {
    return path.join(home(), 'AppData', 'Roaming');
  }
  else {
    return home();
  }
}

object.js

var getConfigDirectory = function () {
  var configPaths = {
    'linux': process.env.XDG_CONFIG_HOME || path.join(home(), '.config'),
    'darwin': path.join(home(), 'Library', 'Preferences'),
    'win32': path.join(home(), 'AppData', 'Roaming'),
    'default': home()
  };
  
  return configPaths[process.platform] || paths.default;
}

switch-inline.js

var getConfigDirectory = function () {
  switch (process.platform) {
    case 'linux': return process.env.XDG_CONFIG_HOME || path.join(home(), '.config')
    case 'darwin': return path.join(home(), 'Library', 'Preferences');
    case 'win32': return path.join(home(), 'AppData', 'Roaming');
    default: return home();
  }  
}

switch.js

var getConfigDirectory = function () {
  switch (process.platform) {
    case 'linux':
      return process.env.XDG_CONFIG_HOME || path.join(home(), '.config')
    case 'darwin':
      return path.join(home(), 'Library', 'Preferences');
    case 'win32':
      return path.join(home(), 'AppData', 'Roaming');
    default:
      return home();
  }  
}