if ( typeof __dirname === 'undefined' ) global . __dirname = '/' ; if ( typeof __filename === 'undefined' ) global . __filename = '' ; process . browser = false ; if ( typeof Buffer === 'undefined' ) global . Buffer = require ( 'buffer' ) . Buffer ; const isDev = typeof __DEV__ === 'boolean' && __DEV__ ; process . env [ 'NODE_ENV' ] = isDev ? 'development' : 'production' ; if ( typeof localStorage !== 'undefined' ) { localStorage . debug = isDev ? '*' : '' ; }