GhostMethods in Javascript

Question

Is there a possibility to implement rubylike ghost methods in Javascript?

The word ghost method means a method that doesn't really exist. If you call object.ghostMethod(), the Method isn't actually declared. There is a function called "method_missing()" in Ruby, which reacts to invocations to methods which aren't declared for the object.

Does a method similar to "method_missing()" exist in Javascript or is it possible to intercept all calls to a object?

dupe stackoverflow.com/questions/9779624/…

georg
– georg

2013-07-09 08:33:56 +00:00
Commented Jul 9, 2013 at 8:33 — georg
– georg, Commented Jul 9, 2013 at 8:33
Thx, didn't find it with the used Keywords.

GiCo
– GiCo

2013-07-09 08:43:48 +00:00
Commented Jul 9, 2013 at 8:43 — GiCo
– GiCo, Commented Jul 9, 2013 at 8:43
See my answer to this: stackoverflow.com/q/3858415/1541563

Patrick Roberts
– Patrick Roberts

2016-05-18 10:08:56 +00:00
Commented May 18, 2016 at 10:08 — Patrick Roberts
– Patrick Roberts, Commented May 18, 2016 at 10:08

Braden Jageman · Accepted Answer · 2013-07-09 08:31:00Z

1

You could try something like

if (typeof(ghost.method) != "undefined") {
    //method exists
}

answered Jul 9, 2013 at 8:31

Braden Jageman

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