[ https://issues.apache.org/jira/browse/GROOVY-7479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pascal Schumacher updated GROOVY-7479: -------------------------------------- Component/s: groovy-jdk Issue Type: New Feature (was: Bug) > Groovy should provide "inits" and "tails" DGM methods for lists > --------------------------------------------------------------- > > Key: GROOVY-7479 > URL: https://issues.apache.org/jira/browse/GROOVY-7479 > Project: Groovy > Issue Type: New Feature > Components: groovy-jdk > Reporter: Paul King > Assignee: Paul King > Fix For: 2.5.0-beta-1 > > > Similar behaviour to Scala: > http://www.scala-lang.org/api/2.10.3/index.html#scala.collection.immutable.List > The relevant bits: > {{inits}}: Iterates over the init values of this list: the first value will > be this list and the final one will be an empty list, with the intervening > values the results of successive applications of init. > {{tails}}: Iterates over the tail values of this list: the first value will > be this list and the final one will be an empty list, with the intervening > values the results of successive applications of tail. > Rather than Scala's Iterable, I think just returning a list will be fine to > match other methods like {{combinations}}. If efficiency is a concern we > could return views (subList) from perhaps a copy of the incoming items. -- This message was sent by Atlassian JIRA (v6.3.4#6332)