如何使用闭包在 groovy 中的闭包中传递多个参数

Question

below is my groovy code I want to pass multiple arguments in closure in groovy

package com.test.demo

def str = {'Yash' , 'deep'}
def merged = { println "$str world"}

merged.call()

this code is giving me an error please anyone give me a solution how can I pass multiple arguments in closure in groovy

Answer 1

There are two problems with your original code:

{ 'Yash', 'deep' } does not imply returning an array, but this will give you an error:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
/tmp/x.groovy: 2: Unexpected input: ',' @ line 2, column 19.
   def str = {'Yash' , 'deep'}

So you have to rewrite that closure to:

{['Yash' , 'deep']}

(note the [] )

Next, if you print the closure like this, you would get the reference printed - so you need to call it.

def merged = { println "${it()} world"}
def str = {['Yash' , 'deep']}
merged(str)