Why it is returning NaN?

Question

I'm making a Fahrenheit to Celsius converter. But my code is returning NaN. What am I doing wrong?
https://code.sololearn.com/Wmyr8bdFy1P3/?ref=app

Answer 1

try this
var fahrenheit = document.getElementById('fahrenheit').value;

there is no need to give double Quotation
for example :

var fa = "document.getElementById('fahrenheit').value"

output: document.getElementById('fahrenheit').value;

var fa = document.getElementById('fahrenheit').value

output: (Entered value will be the Output )

Answer 2

Remove the double quotes from the variable fahrenheit declaration.

Answer 3

Thanks guys. It really helps 😊