The code that follows has a bug in it because the second use of the variable named salesTax is spelled with all lowercase letters $($salestax$).$

var calculateTax $=$ function$($subtotal$,$taxRate$)\{$

var salesTax $=$ subtotal $*$ taxRate;

salestax $=$ parseFloat$($salesTax$.$toFixed$(2))$;

return salesTax;

$\}$

Assuming that there are no other problems and that you$$re using strict mode, what will happen when this code is executed?

The code that follows has a bug in it because the second use of the variable named salesTax is spelled with all lowercase letters $($salestax$).$

var calculateTax $=$ function$($subtotal$,$taxRate$)\{$

var salesTax $=$ subtotal $*$ taxRate;

salestax $=$ parseFloat$($salesTax$.$toFixed$(2))$;

return salesTax;

$\}$

Assuming that there are no other problems and that you$$re using strict mode, what will happen when this code is executed?

salestax will contain the rounded sales tax value

an error will occur because salestax hasn$$t been declared

salesTax will contain null when it is returned

salesTax will contain the right value, but it won$$t be rounded