@vladmandic/face-api/src/env/isBrowser.ts

FaceAPI: AI-powered Face Detection & Rotation Tracking, Face Description & Recognition, Age & Gender & Emotion Prediction for Browser and NodeJS using TensorFlow/JS

export function isBrowser(): boolean {
  return typeof window === 'object'
    && typeof document !== 'undefined'
    && typeof HTMLImageElement !== 'undefined'
    && typeof HTMLCanvasElement !== 'undefined'
    && typeof HTMLVideoElement !== 'undefined'
    && typeof ImageData !== 'undefined'
    && typeof CanvasRenderingContext2D !== 'undefined';
}