ccxt-js/js/base/functions/platform.js

The node.js portion of original ccxt cryptocurrency trading library with support for 100+ exchanges. It reduces the size of the library from 40MB to 8MB

"use strict";

// ----------------------------------------------------------------------------
// There's been a lot of messing with this code...
// The problem is to satisfy the following requirements:
// - properly detect isNode == true on server side and isNode == false in the browser (on client side)
// - make sure create-react-app, react-starter-kit and other react frameworks work
// - make sure it does not break the browserified version (when linked into a html from a cdn)
// - make sure it does not break the webpacking and babel-transpiled scripts
// - make sure it works in Electron
// - make sure it works with Angular.js
// - make sure it does not break other possible usage scenarios

const isBrowser = typeof window !== 'undefined'

const isElectron = typeof process !== 'undefined' &&
                   typeof process.versions !== 'undefined' &&
                   typeof process.versions.electron !== 'undefined'

const isWebWorker = typeof WorkerGlobalScope !== 'undefined' && (self instanceof WorkerGlobalScope)

const isWindows = typeof process !== 'undefined' && process.platform === "win32"

const isNode = !(isBrowser || isWebWorker)

// ----------------------------------------------------------------------------

module.exports = {

    isBrowser,
    isElectron,
    isWebWorker,
    isNode,
    isWindows,
}