Global Variable / Constant in React Native

Question

is there a way in React Native that I can define on a global variable all the strings that I will be using like in Android Development there is a String.xml where you can put all of your strings.

Answer 1

What' I've done is create a globals module...

// File: Globals.js

module.exports = {   STORE_KEY: 'a56z0fzrNpl^2',   BASE_URL: 'http://someurl.com',   COLOR: {     ORANGE: '#C50',     DARKBLUE: '#0F3274',     LIGHTBLUE: '#6EA8DA',     DARKGRAY: '#999',   }, }; 

Then I just require it at the top...

const GLOBAL = require('../Globals'); 

And access them like so...

GLOBAL.COLOR.ORANGE 

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UPDATE on Feb 10, 2018

This seems to be a pretty popular and useful answer, so I thought I should update it with the more current syntax. The above still works in CommonJS module systems, but now days you're just as likely to run into ES6 and importmodules rather than require them.

ECMAScript Modules (ESM) Syntax

// File: Globals.js

export default {   STORE_KEY: 'a56z0fzrNpl^2',   BASE_URL: 'http://someurl.com',   COLOR: {     ORANGE: '#C50',     DARKBLUE: '#0F3274',     LIGHTBLUE: '#6EA8DA',     DARKGRAY: '#999',   }, }; 

// to use...

import GLOBALS from '../Globals'; // the variable name is arbitrary since it's exported as default 

// and access them the same way as before

GLOBALS.COLOR.ORANGE 

Answer 2

global in react native is like the window in web development.

// declare a global varible global.primaryColor = '***';  //now you can use this variable anywhere console.log(primaryColor);