function fbmcc_sanitizeLocale()

in script.js [58:64]

• 7 lines of code
• 2 McCabe index (conditional complexity)

function fbmcc_sanitizeLocale( locale ) {
  if( /^[A-Za-z_]{4,5}$/.test(locale) ) {
    return locale;
  } else {
    return '';
  }
}