Util Libraries For react-native

• For form or inputText string validation in JavaScript.  
  
  https://www.npmjs.com/package/validator 
  Example :
     import validator from 'validator';
     validator.isEmail('foo@bar.com'); //=> true
  
  
• For getting click event from one screen to another screen.  
  https://www.npmjs.com/package/react-native-event-listeners