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Re: Java ScriptEngine with a JavaScript returning what?

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Date Wed, 17 Sep 2014 19:58:44 +0300
From Donkey Hottie <donkey@fredriksson.dy.fi>
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Subject Re: Java ScriptEngine with a JavaScript returning what?
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17.09.2014, 01:20, Eric Sosman kirjoitti:
> On 9/16/2014 4:02 PM, Donkey Hottie wrote:
>>
>> Consider a JavaScript:
>>
>>      var blah;
>>      blah;
>>
>> So what does the Java's
>>
>>      Object ScriptEngine::eval(String script) return now?
>>
>> blah is not null? Is it not undefined either? Java has no "undefined"
>> Object type.
>>
>> What will happen, what will be returned?
> 
>     null
> 
>     (Obtained by a five-minute experiment.  "Five" because I have no
> acquaintance with the scripting framework and had to read some doc;
> a better-versed person could have obtained the answer more quickly.)
> 

Actually I tried and experimented with this after I asked, and it
resulted to me that returning  null OR undefined will result as an
Exception, which is unacceptable for my purposes. So I will not return
those values from my script any more. An empty string '' works fine.

-- 

A day for firm decisions!!!!!  Or is it?

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Thread

Java ScriptEngine with a JavaScript returning what? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-16 23:02 +0300
  Re: Java ScriptEngine with a JavaScript returning what? Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-09-16 18:20 -0400
    (was: Re: Java ScriptEngine with a JavaScript returning what?) Robert Klemme <shortcutter@googlemail.com> - 2014-09-17 08:24 +0200
      Re: Re: Java ScriptEngine with a JavaScript returning what?) "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-09-17 09:48 +0100
        Re: Java ScriptEngine with a JavaScript returning what?) Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-09-17 08:32 -0400
          Re: Java ScriptEngine with a JavaScript returning what?) Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 20:08 +0300
      Re: (was: Re: Java ScriptEngine with a JavaScript returning what?) Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 19:56 +0300
        Re: (was: Re: Java ScriptEngine with a JavaScript returning what?) Robert Klemme <shortcutter@googlemail.com> - 2014-09-17 19:35 +0200
    Re: Java ScriptEngine with a JavaScript returning what? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 19:58 +0300
    Re: Java ScriptEngine with a JavaScript returning what? "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2014-09-17 18:41 +0100
      Re: Java ScriptEngine with a JavaScript returning what? Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-09-17 13:57 -0400
        Re: Java ScriptEngine with a JavaScript returning what? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 21:12 +0300
        Re: Java ScriptEngine with a JavaScript returning what? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 21:14 +0300
      Re: Java ScriptEngine with a JavaScript returning what? Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-09-17 21:17 +0300

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