JavaScript Execution Context (electron-process-type)

A function which returns the execution environment of your code.

Detect the engine which is executing your code:

NodeJS runtime
Browser runtime
Electron runtime

detect which are the environments / API(s) available :

NodeJS
Browser
Worker
Electron

Runtime	Node	Browser	Electron
NodeJS API	Node.js process	\| Electron Node.js process
Browser API	\| Browser	Electron Renderer or preload
Worker API	WorkerThread	WebWorker	Electron Worker
Electron API	\| Electron preload	Electron main process

Worker, ServiceWorker, SharedWorker detection is still experimental/partial

This API works in any kind of processes (not only Electron): Electron, Node, Browser, ...

In Electron, the detection uses the Electron API process.type but there is some limitations.
It does not work properly in following contexts :

in a node process
in a renderer when Chromium is in sandbox (--enable-sandbox=true)
in a renderer when Renderer is in sandbox=true
in a renderer when nodeIntegration=false
in preload file of a renderer

Dependencies

http://nodejs.org/

API

function GetExecutionContext(): ExecutionContext;

export enum ExecutionContext {
    Undefined         = 0,
    Node              = NodeEnv | NodeRuntime,
    Browser           = BrowserEnv | BrowserRuntime,
    WebWorker         = WorkerEnv | BrowserRuntime,
    WorkerThread      = WorkerEnv | NodeRuntime,
    ElectronWorker    = WorkerEnv | ElectronRuntime,
    ElectronNode      = NodeEnv | ElectronRuntime,
    ElectronRenderer  = BrowserEnv | ElectronRuntime,
    ElectronPreload   = BrowserEnv | ElectronEnv | ElectronRuntime,
    ElectronMain      = NodeEnv | ElectronEnv | ElectronRuntime
}

return the current execution context.

function IsContextNode(): boolean

Check if you are running in a NodeJS context: pure NodeJS process, Electron NodeJS process, Electron Main NodeJS process.

function IsContextBrowser(): boolean;

Check if you are running in a Browser (Navigator) context: pure Browser, Electron browser.

function IsContextWorker(): boolean;

Check if you are running in a Worker.

function IsProcessElectron(): boolean;

Check if you are running in a Electron process: Electron NodeJS process, Electron Main NodeJS process, Electron browser.

Package detail

electron-process-type

readme