If you want to actually edit the original map:
def uidMap = [
a: 123,
b: 456,
c: 789
]
uidMap.entrySet().removeAll { it.key.startsWith('a') }
If you want a new map, emmanuel’s solution using findAll is best.
Jason
From: Guy Matz [mailto:[email protected]]
Sent: Thursday, June 02, 2016 2:18 PM
To: [email protected]
Subject: Looping through a hashmap & removing elements
Hi! I want to loop through a hashmap and delete some elements based on some
criteria . . . I thought there would be some slick groovy method - in the
spirit of findAll, etc. - to do this, but couldn't find it . . . my java
developer workmate suggested:
iter = uidMap.entrySet().iterator()
while (iter.hasNext()) {
entry = iter.next()
key = entry.key
value = entry.value
if (bla, blah, blah) {
iter.remove()
}
Is there a groovier way?
Thanks!
Guy
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