Home / Questions / 65883
Accepted
Eduardo Sebastian
Asked: 2020-04-28 04:16:54 +0800 CST 2020-04-28 04:16:54 +0800 CST

What is the difference between these two forms in Javascript?

  • 772

What is the difference between:

function sumar() {
    var suma = 0;
    var f = 0;
    for ( f; f < arguments.length; f++) {

        suma = suma + arguments[f]; 

    }
    document.write(suma);
}
sumar(2,3,4);

with this:

function sumar() {
    var suma = 0;
    var f = 0;
    for ( f; f < arguments.length; f++) {

        suma = suma + arguments[f];

    }
    return suma;
}
document.write(sumar(2,3,4));
javascript

1 Answers

  1. Best Answer

    In the first function:

    • Always write the result.
    • It never returns the result.

    The second:

    • It always returns the result with which:

      • You can choose whether to write the result withdocument.write(sumar(2,3,4));
      • You can save the result in a variablevar resultado = sumar(1,2,3) //resultado=6

    If you have to choose one, I would choose the second one that gives you more game. But it all depends on what you are looking for with it.

    • 11