date-difference-calculate/index.js

A library to calcute the times difference between teh current date and a provided date

function calculateTimeDifference (targetDate){
    const currenceDate = new Date();
    const futureDate = new Date(targetDate);

    if (isNaN(targetDate)){
        throw new Error('invalid date format')
    }

    if (futureDate <= currenceDate){
        return{error: "the date provide is in the past"}
    }

    const diffInMillis = futureDate - currenceDate
    const diffInMinuts = Math.floor(diffInMillis / (1000 * 60))
    const days = Math.floor(diffInMinuts / (60 * 24))
    const hours = Math.floor(diffInMinuts % (60 * 24) / 60)
    const minutes = Math.floor(diffInMinuts % 60 )

    return{
        days,
        hours,
        minutes,
    };
}

module.exports = { calculateTimeDifference };