I'm getting error in this code, I am making a calculator that can add, subtract, multiply and divide, the values of the numbers the code reads them correctly, but when I try to do the operations I get the error, and I don't understand why the code doesn't read it, can someone tell me what I'm doing wrong? this is the code
function handleNumber(stNumber) {
if(stNumber=="numero1")
{
Num1 = document.getElementById(stNumber).value*1;
}else{
Num2 = document.getElementById(stNumber).value*1;
}
return Num1, Num2;
}
function handleOperate() {
var stOperation = document.getElementById(operaciones).value;
Execute(stOperation);
}
function Execute(stOperation) {
var stResult = ""
if(stOperation == "sumar"){
stResult= sumar();
} else if(stOperation =="restar"){
stResult= restar();
} else if(stOperation =="multiplicar"){
stResult= multiplicar();
} else if(stOperation =="dividir"){
stResult= dividir();
}
document.getElementById("result").innerHTML = stResult;
}
this is the html
<div class="Container-operation">
<span>Operación</span>
<div class="Button-container" id="operator">
<select onchange="handleOperate()" class="Panel-container" id="operaciones">
<option value="sumar">Sumar</option>
<option value="restar">Restar</option>
<option value="multiplicar">División</option>
<option value="dividir">Multiplicación</option>
</select>
</div>
</div>
</div>
<div class="Equal">
=
</div>
<div class="Result-container">
<span id="result">Resultado</span>
</div>
You're passing a variable operaciones
to getElementById()
. If you don't set a value for this variable it will not work. You probably want to pass a string 'operaciones'
instead.
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