Groovy not in collection

Question

The groovy way to see if something is in a list is to use \"in\"

   if(\'b\' in [\'a\',\'b\',\'c\'])

However how do you nicely see if something

Answer 1

The contains(string) method is nice and simple to read if something is contained or not contained in the list to be checked against. Take a look the example below for more insight.

EXAMPLE

//Any data you are looking to filter  
List someData = ['a', 'f', 'b', 'c', 'o', 'o']

//A filter/conditions to not match or match against
List myFilter = ['a', 'b', 'c'] 

//Some variables for this example
String filtered, unfiltered 

//Loop the data and filter for not contains or contains
someData.each {
   if (!myFilter.contains(it)){
      unfiltered += it
   } else {        
      filtered += it
   }
}

assert unfiltered = "foo"
assert filtered = "abc"

CONTAINS( )

Parameters: text - a String to look for.

Returns: true if this string contains the given text

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