react form validation

FormErrors.js

import React from 'react';

export const FormErrors = ({formErrors}) =>
  <div className='formErrors'>
    {Object.keys(formErrors).map((fieldName, i) => {
      if(formErrors[fieldName].length > 0){
        return (
          <p key={i}>{fieldName} {formErrors[fieldName]}</p>
        )        
      } else {
        return '';
      }
    })}
  </div>

install.sh

$ npm install -g create-react-app
$ create-react-app react-form-validation-demo




$ cd react-form-validation-demo/
$ npm start