Funcion and Variable related Question

Question

Hi everyone.
So, on my script, I have a function that is called once you click a button. It adds 1 to a variable. The problem is that I can't use the total value later in the script. I would like to use that value on another function. Is that possible??
Thank you all

Answer 1

Alexandre Now I see the problem. In your code:
var n_jogadores, inputPlayers, nomear, jogador=new Array(11), jog=new Array(11), p;
function maisJogadores(){
n_jogadores++;
}
the variable n_jogadores has no value (NaN) and you want to add the 1. This does not work in most of the programming languages.

Answer 2

You can do that by making that variable global scope.

Answer 3

Yes of course, that is possible. Where is your attempt or better a link to it?

Answer 4

This is the code, I took a few parts off, cause I needed all html pages for this to work.

https://code.sololearn.com/W28WXUSbgwGk/?ref=app

Answer 5

🔫 Rick Grimes What is that? And how can I do it??

Answer 6

Thanks Ja Play
But, on my code, I declare the variable "n_jogadores=0" at the beginning. Then, at the function I add 1, now "n_jogadores" should be equal to 1. And when I use "alert(n_jogadores)" inside of the function, it says "1" but outside doesn't.
Well, I came up with the idea of using "sessionStorage" for this. I think it will work, but if you don't mind, why does it(what I said earlier) happen?
Anyway, thanks for your time

Answer 7

Ja Play I see. Ok, I'll try to use it and then I'll set your answer as correct. Btw, sorry about the name of my variables. English isn't my mother language.

Thank you all : )

[Edit]
I've already test it and it works, so @Ja Play Thanks a lot. Your answer saved me hours of searching!

Answer 8

Maybe that can be helped:
In the example below, a is a global variable and b is local variable.

// a can here be used but b cannot be here used
var a = 4;

function myFunction() {
// a and b can here be used
var b = 3;
return a * b;
}

// b cannot be here used. a can here be used.

https://www.sololearn.com/learn/315/

Answer 9

Alexandre it‘s works. Try the code below:

var counter = 0;
function first() {
counter++;
}
function second(){
alert(counter);
}
first();
second();
console.log(counter);
counter++;
second();

Answer 10

Your welcome Alexandre . The idea - if you want to change the page - using session storage for onward transmission is good.