Groovy - Basic Question

[Sri Yasasvi]

Hi All,

I am new to Groovy. I am running some basic examples while learning.

Could anyone of you tell me why the last print statement is printing true.

def noParam = { -> println "I'm executed"; return "no param"}
def oneParam = { out -> println "Executed with a ${out.class} parameter"; out << "one param"}
println noParam != "no param // Printing true

Thanks,
Yasasvi

[Sri Yasasvi]

Here is my undrestanding.

noParam is Closure. So the statement (println noParam != "no param") is returning true.

Then i changed the statement (println noParam.toString() != "no param") . But it is still returning true. Could you please explain this.

[Mohamed Sanaulla]

Unlike simple code blocks, closures have to be executed. Try invoking call() on the closure and assign the result to some variable

[Sri Yasasvi]

Thank you so much Mohamed!!!


Now i understand clearly.....