nomadmania-app/src/utils/responsive-font.ts

import { PixelRatio } from 'react-native';

const fontScale = PixelRatio.getFontScale();
export const getFontSize = (size: number) => size / fontScale;

export const getYears = (date: string): number => {
  const birthDate = new Date(date);
  const today = new Date();

  let age = today.getFullYear() - birthDate.getFullYear();
  const monthDifference = today.getMonth() - birthDate.getMonth();
  const dayDifference = today.getDate() - birthDate.getDate();

  if (monthDifference < 0 || (monthDifference === 0 && dayDifference < 0)) {
      age--;
  }

  return age;
};