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.