Why is the first return in my javascript while loop undefined?-CodePudding

why is my while loop returning 'undefined' in the first loop instead of 'time'?

let i = 1,
  quantity;
while (i <= 10) {
  console.log(`${txtsoobin.firstName} sang blue hour ${i} ${quantity}.`);
  i  ;
  if (i == 1) {
    quantity = 'time';
  } else {
    quantity = 'times'
  }
}

sorry if the code looks messy i just started learning javascript

CodePudding user response：

Because when you declare quantity, you are not assigning any value to it, thus it is undefined.

During the first loop, your are logging quantity before you assign it 'time' or 'times'. So quantity is still undefined. If you want it to log something else than undefined, just move it below the if/else loop, like this :

let i = 1,
  quantity;
while (i <= 10) {
  i  ;
  if (i === 1) {
    quantity = 'time';
  } else {
    quantity = 'times'
  }
  console.log(`${txtsoobin.firstName} sang blue hour ${i} ${quantity}.`);
}