How do I add numbers in innerHTML?

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-3

The code is not adding, just joining (concatenating*) the numbers

var media = "";
var media2 = "";
var media3 = "";
var media4 = "";

function myFunction(){

media = Number(document.getElementById("vnota").value);
media2 = Number(document.getElementById("vnota2").value);
media3 = Number(document.getElementById("vnota3").value);
media4 = Number(document.getElementById("vnota4").value);

document.getElementById("notas").innerHTML = "A sua nota final é: " + media + media2 + media3 + media4;


}

javascript html brazil

  • "Putting together" you mean "concatenating", it’s not?

  • Try to put the sum in parentheses ("A sua nota final é: " + (media + media2 + media3 + media4)). If not you can add before and save to a variable, total, for example

  • It worked, thanks bro! <3

2 answers

1


var media = "";  //Apenas uma variável é necessária, vc só precisa ir 
                 //somando a cada nova nota;

function myFunction(){

media = Number(document.getElementById("vnota").value);
media += Number(document.getElementById("vnota2").value);
media += Number(document.getElementById("vnota3").value);
media += Number(document.getElementById("vnota4").value);

document.getElementById("notas").innerHTML = "A sua nota final é:" +media ;


}

-1

Can create a total variable the code would look like this total = (media + media2) + media3 + media4 and the total variable has to be declared within the Myfunction dps only writing it in innerHTML would save that amount of media in innerHTML.

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