Function Overloading in JQuery Terminal?

[auki19]

I'm very new to JQuery so apologies if this is a silly question, but I want to be able to overload a function in the terminal so that I can have a command that can take either one argument or no arguments. Here's my code:
test: function(x) { this.echo(x); }, test: function() { this.echo("a"); }

When I test this in the terminal, I get:

test
a
test "a"
[Arity] Wrong number of arguments. Function 'test' expects 0 got 1!

Clearly I'm doing something wrong, but I'm not sure what. Is it possible for a function to take multiple arguments in the JQuery terminal?

[jcubic]

This has nothing to do with jQuery. JavaScript doesn't support of overloading. Only statically typed languages have this feature.

If you want a variable number of arguments, you create a single function. If the command does not have that argument, it will be undefined. But for it to work, you need option checkArity: false