Why does it only count the first number?

Question

I was just trying to see what i can do with JS, so i made a little code where you can input 2 numbers and it Will show you which one is the highest, but the code is only looking to the first number. For example if you put in 9 and 24, it Will say that 9 is bigger than 24. Why is this??
https://code.sololearn.com/WGSVn7jwTKVD/?ref=app

Answer 1

as Shashi Ranjan said the returned value of prompt is a string. So when the inputs are 9 and 24, they are actually returned by prompt as "9" and "24".

String are compared lexicographically, where by 9 is compared to 2 instead of 24.

So you need to implicitly convert the prompt values to Numbers before you compare.

so you could use "+" to convert the strings to numbers in your code as follows:

if (+a > +b) {
// info here
}
else if (+a == +b) {
// info here
}
else {
// info here
}

Hope it helps, happy coding!

Answer 2

In addition to what Ben Bright said, you can directly typecast them.

a= Number(prompt(....))
b= Number(prompt(...))

Answer 3

It's bcz a and b are of string type and not Number. Convert them into numbers and it'll work.

Answer 4

Thank you very much Ben Bright and Shashi Ranjan

Answer 5

How should i replace them in numbers, I Don't understanf