JavaScript/Timing-Functions/GetMonthDays.js at master · FullMetalAnna/JavaScript · GitHub

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/**
 function that takes month number and its year and returns the number of days within it
 * @param monthNumber.
 * @param year.
 e.g.: mahfoudh.arous@gmail.com -> true
 e.g.: mahfoudh.arous.com ->false
*/

constgetMonthDays=(monthNumber,year)=>{
constthe31DaysMonths=[1,3,5,7,8,10,12]
constthe30DaysMonths=[4,6,9,11]

if(!the31DaysMonths.includes(monthNumber)&&!the30DaysMonths.includes(monthNumber)&&
(monthNumber!==2)
){
thrownewTypeError('Invalid Month Number.')
}

if(the31DaysMonths.includes(monthNumber)){return31}

if(the30DaysMonths.includes(monthNumber)){return30}

// Check for Leap year
if(year%4===0){
if((year%100!==0)||(year%100===0&&year%400===0)){
return29
}
}

return28
}

export{getMonthDays}
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/**
 function that takes month number and its year and returns the number of days within it
 * @param monthNumber.
 * @param year.
 e.g.: mahfoudh.arous@gmail.com -> true
 e.g.: mahfoudh.arous.com ->false
*/

constgetMonthDays=(monthNumber,year)=>{
constthe31DaysMonths=[1,3,5,7,8,10,12]
constthe30DaysMonths=[4,6,9,11]

if(!the31DaysMonths.includes(monthNumber)&&!the30DaysMonths.includes(monthNumber)&&
(monthNumber!==2)
){
thrownewTypeError('Invalid Month Number.')
}

if(the31DaysMonths.includes(monthNumber)){return31}

if(the30DaysMonths.includes(monthNumber)){return30}

// Check for Leap year
if(year%4===0){
if((year%100!==0)||(year%100===0&&year%400===0)){
return29
}
}

return28
}

export{getMonthDays}