why is not working properly my output reflects twice in console , in for loop statement for print mo-CodePudding

This snippet should print the number of days in a month specified through user input. However, each day is logged twice to the console, regardless which month is chosen:

"Day:", 1
"Day:", 1
"Day:", 2
"Day:", 2

var month = prompt("enter which month of the year 1 to 12", 6);
for (var days = 1; days <= 31; days  ) {
  if ((month == 4 || month == 6 || month == 9 || month == 11) && days == 31) continue
  console.log('Day:', days);
  if (month == 2 && days == 28) break
  console.log('Day:', days);
}

CodePudding user response：

    var month=prompt ("enter which month of the year 1 to 12", 6);

    for(var days=1; days<=31; days  ) {
      if((month==4 || month==6 || month==9 || month==11) && days==31)break;
      if(month==2 && days==28)break
      console.log('Day:',days);
    }

CodePudding user response：

but my output print twice in console like day1 repeats twice

Without {}, if statements only affect the immediately following line which in this case would be just continue and break as you have set them inline.

I think the program can be improved to factor in for the leap year value.

var month = prompt("enter which month of the year 1 to 12", 6);

if (month < 1 || month > 12) {
    alert('Please enter a valid month');
}

// to factor for the leap year instead of hardcoding 28 for Feb
var currentYear = new Date().getFullYear();
var daysInMonth = new Date(currentYear, month, 0).getDate(); 

for (var days = 1; days <= daysInMonth; days  ) {
    console.log('Day:', days);
}