@vladmandic/face-api/src/factories/WithGender.ts

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

import { Gender } from '../ageGenderNet/types';
import { isValidProbablitiy } from '../utils/index';

export type WithGender<TSource> = TSource & {
  gender: Gender
  genderProbability: number
}

export function isWithGender(obj: any): obj is WithGender<{}> {
  return (obj.gender === Gender.MALE || obj.gender === Gender.FEMALE)
    && isValidProbablitiy(obj.genderProbability);
}

export function extendWithGender<
  TSource
>(
  sourceObj: TSource,
  gender: Gender,
  genderProbability: number,
): WithGender<TSource> {
  const extension = { gender, genderProbability };
  return { ...sourceObj, ...extension };
}