shim.js

if (typeof __dirname === 'undefined') global.__dirname = '/'
if (typeof __filename === 'undefined') global.__filename = ''
if (typeof process === 'undefined') {
    global.process = require('process')
} else {
    const bProcess = require('process')
    for (var p in bProcess) {
        if (!(p in process)) {
            process[p] = bProcess[p]
        }
    }
}

process.browser = false
if (typeof Buffer === 'undefined') global.Buffer = require('buffer').Buffer

// global.location = global.location || { port: 80 }
const isDev = typeof __DEV__ === 'boolean' && __DEV__
process.env['NODE_ENV'] = isDev ? 'development' : 'production'
if (typeof localStorage !== 'undefined') {
    localStorage.debug = isDev ? '*' : ''
}

// If using the crypto shim, uncomment the following line to ensure
// crypto is loaded first, so it can populate global.crypto
// require('crypto')