Having trouble with 'while' loop in javascript

Question

I\'m new with javascript, and I\'m having some trouble understanding why this code doesn\'t execute:

var weight;

wight=parseInt(prompt(\"Please, enter weight\")         


        

Answer 1

Try this

var weight;

weight=parseInt(prompt("Please, enter weight"));

while (weight>0)
{ 
  if (weight>199 && weight<300)
{
  document.write("Tax will be" + weight*5);
}
  else 
{
  document.write("Tax will be" + weight*10);
}
}