Re: Variable defined (or not)

Thanks! Groovy is embedded and called from servlet (data contains
request parameters as HashMap):
========================================= Servlet clip:
groovy.lang.Binding binding = new groovy.lang.Binding(data);
GroovyShell shell = new GroovyShell(binding); 
shell.evaluate( new File(fileName) );
========================================= Testfile:
if(a!=null)
        b=[5, 9, 2, 2, 4, 5, 6].join("abc");
else
        b=[5, 9, 2, 2, 4, 5, 6].join(" - ");
========================================= Results exception:
groovy.lang.MissingPropertyException: No such property: a for class:
groovy
        at groovy.lang.MetaClass.getProperty(MetaClass.java:697)
- -

--- Jeremy Rayner <groovy-WROaGtoGdBGWkzVdRvz7FA@xxxxxxxxxxxxxxxx> wrote:
> On Fri, Oct 15, 2004 at 04:28:58AM -0700, juhani wrote:
> > Hi! How do you test if variable is defined or not?
> Hi, not sure of the context in which you're thinking,
> but inside a groovy script all variables are an object
> so a simple test for null should do the trick
> if (foo != null) {
>   println foo
> } else {
>   println "foo is undefined"
> }
> Hope that helps



                
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