How to return values in javascript

Question

I have a javascript function:

function myFunction(value1,value2,value3)
{
     //Do stuff and 

     value2=somevalue2 //to return
     value3=somevalue3 //t         


        

Answer 1

You can return an array, an object literal, or an object of a type you created that encapsulates the returned values.

Then you can pass in the array, object literal, or custom object into a method to disseminate the values.

Object example:

function myFunction(value1,value2,value3)
{
     var returnedObject = {};
     returnedObject["value1"] = value1;
     returnedObject["value2"] = value2;
     return returnedObject;
}

var returnValue = myFunction("1",value2,value3);

if(returnValue.value1  && returnValue.value2)
{
//Do some stuff
}

Array example:

function myFunction(value1,value2,value3)
{
     var returnedArray = [];
     returnedArray.push(value1);
     returnedArray.push(value2);
     return returnedArray;
}

var returnValue = myFunction("1",value2,value3);

if(returnValue[0]  && returnValue[1])
{
//Do some stuff
}

Custom Object:

function myFunction(value1,value2,value3)
{
     var valueHolder = new ValueHolder(value1, value2);
     return valueHolder;
}

var returnValue = myFunction("1",value2,value3);

// hypothetical method that you could build to create an easier to read conditional 
// (might not apply to your situation)
if(returnValue.valid())
{
//Do some stuff
}

I would avoid the array method because you would have to access the values via indices rather than named object properties.