Home / Questions / 266015
Accepted
Tux9000
Asked: 2020-05-23 16:48:09 +0800 CST 2020-05-23 16:48:09 +0800 CST

How to make a function return me 3 separate values?

  • 772

How could I make 1 function return 3 values ​​so that those 3 values ​​would serve as input parameters of another function (as if it were a callback --which in fact, I think it is--)?

So far I tried the following (although it did not work):

var resultado;
function num_2(repet){
	for (var i = 0; i > repet-1; i++) {
		if (i>=1) {
			return i + ", ";
		}else{
			return i;
		}
	}
}


function sumarr(a,b,c){
	if (a!="" && a!=null) {
		resultado = a+b+c;
		return "\n" + "resul: " + resultado + '\n' + "1: " +
		a + '\n' + "2: " + b + '\n' + "3: " + c + '\n' + '\n';
	}else{
		return "noting";
	}
}
console.log("\n" + "callback: " + sumarr(num_2(3)));

javascript

1 Answers

  1. Best Answer

    In javascript you can't, what you can do is return a structure that helps you with your task, for example you can return an array with the three elements or an object with three properties.

    Example returning an array:

    function obtenerNumeros(){
  var numeros = [1,3,4];
  return numeros;
}

function sumar(a,b,c){
  return a+b+c;
}

var numerosSuma = obtenerNumeros();
console.log(sumar(numerosSuma[0],numerosSuma[1],numerosSuma[2]));

    Example returning an object:

    function obtenerNumeros(){
  var numeros = { 
    primero: 3,
    segundo: 5,
    tercero: 4
  };
  return numeros;
}

function sumar(a,b,c){
  return a+b+c;
}

var numerosSuma = obtenerNumeros();
console.log(sumar(numerosSuma.primero,numerosSuma.segundo,numerosSuma.tercero));

    • 1