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get date of birth using year or year and month

Calm Cat answered on June 23, 2023 Popularity 3/10 Helpfulness 1/10

answer get date of birth using year or year and month

get date of birth using year or year and month

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function calculateDateOfBirth(ageYears, ageMonths = 0) {
  const currentDate = new Date();

  const birthYear = currentDate.getFullYear() - ageYears;
  const birthMonth = currentDate.getMonth() - ageMonths;

  let birthDate = currentDate.getDate();

  // Adjust birth year and birth month if the current date is before the birth date in the current month
  if (birthMonth < 0 || (birthMonth === 0 && birthDate < 0)) {
    birthYear--;
    birthMonth += 12;
  }

  // Adjust birth month if the current date is before the birth date in the current month
  if (birthDate < 0) {
    const monthDays = new Date(
      currentDate.getFullYear(),
      currentDate.getMonth(),
      0
    ).getDate();
    birthMonth--;
    birthDate += monthDays;
  }

  const dateOfBirth = new Date(birthYear, birthMonth, birthDate);

  return dateOfBirth.toISOString().split('T')[0]; // Format the date as YYYY-MM-DD
}

// Example usage
const ageYears = 30;
const ageMonths = 6;
const dateOfBirth = calculateDateOfBirth(ageYears, ageMonths);

console.log(dateOfBirth);

Popularity 3/10 Helpfulness 1/10 Language javascript

Source: chat.openai.com

Tags: date get javascript using

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Contributed on Jun 23 2023

Calm Cat

0 Answers Avg Quality 2/10

get date of birth using year or year and month

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