React Native - Basic Util Functions

gistfile1.txt

#React-Native: How to use common functions

1. Create a file 'validate.js'.
2. Add few function like this

export function isEmpty(str) {
    return (!str || 0 === str.length);
}

export function validateEmail(email) {
    var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;

    if (filter.test(email)) return true;

    return false;
}

3. Then you can use it inside the component.

import { isEmpty } from './utils/validate';