Question

How to retain all element that satisfy a condition from a map in Groovy

Answer 1

def map = [a:13, b:12, c:43, d:87, e:2, f:100, g:99]

map.retainAll{e -> e.value % 2 == 0}

map.each{key, value -> println "${key}:${value}"}

 
 
 
/*
run:
 
b:12
e:2
f:100
 
*/

 

70+ SQL courses for beginners and professionals