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

spelling of weight :

while (wight>0);

while (weight>0);

also in

document.write("Tax will be" + wight*10);

document.write("Tax will be" + weight*10);