Javascript pass array to another function

Question

Since overloading a function is not allowed, I am trying to find a way to pass values to a function.

In php I resolve in the following way:

// value2 and value3 are optional
function myMethod(value1, value2 = '', value3 = '')
{
   // TO DO
}

In Java I can overload the methods:

function myMethod(value1)
{
   // TO DO
}

function myMethod(value1, value2)
{
   // TO DO
}

In javascript I don't know:

var myAwesomeOptions =
{
   'value1' : 'abc',
   'value3' : 'def'
}

myMethod(myAwesomeOptions);    

function myMethod(options)
{
   if (value1 == ???? ) ...
   or

   switch(options)
   ....
}

As you can see I am trying to do an overload for a function. How can I pass values to a functions with optional parameters?

possible duplicate of Function overloading in Javascript - Best practices — Brigand
– Brigand, Commented Aug 17, 2013 at 7:53
It's not a complete answer, because I don't know how to switch between values. I know how to pass an array, but how to handle them? — Zbarcea Christian
– Zbarcea Christian, Commented Aug 17, 2013 at 7:55

Community · Accepted Answer · 2017-05-23 12:28:55Z

2

Chech this link..

Object.prototype.toString.call(vArg) === "[object Array]";

edited May 23, 2017 at 12:28

CommunityBot

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answered Aug 17, 2013 at 7:55

Akhil

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Comments

Mahbub · Accepted Answer · 2013-08-17 08:03:04Z

0

There's Argument object in JavaScript. For example.

function testme()
{
    var first_name=arguments[0] || "John";
    var last_name=arguments[1] || "Doe";
    alert(first_name);
    alert(last_name);
}

testme();

testme("Jane");

So you can use the Argument object to overload functions. Of course you can also pass array or collections too.

answered Aug 17, 2013 at 8:03

Mahbub

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Comments

Anton Moroz · Accepted Answer · 2013-08-17 12:28:42Z

0

You can do in the following way:

function myMethod() {
 switch (arguments.length) {
  case 0:
   //TO DO
   break;
  case 1:
   var value1 = arguments[0];
   //TO DO
   break;
 }
}

answered Aug 17, 2013 at 12:28

Anton Moroz

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