groovy

Groovy could benefit from DGM takeWhile and dropWhile methods

Details

  • Type: Improvement Improvement
  • Status: Closed Closed
  • Priority: Minor Minor
  • Resolution: Fixed
  • Affects Version/s: 1.8.6
  • Fix Version/s: 2.0-beta-3, 1.8.7
  • Component/s: groovy-jdk
  • Labels:
    None
  • Testcase included:
    yes
  • Number of attachments :
    0

Description

Currently, there is a take method on collections that returns the first N items in a collection. Other languages such as scala and haskell also provide a takeWhile method, that is similar. Instead of taking a fixed number of items, it takes items until a condition, in the form of a closure, is met.

For example:

def items = [1,2,3,4,5,4,3,2,1]
def sublist = items.takeWhile { it < 5 }
assert sublist == [1,2,3,4]

Issue Links

is related to

New Feature - A new feature of the product, which has yet to be developed. GROOVY-4865 Add a take method to Collections, Iterators, Arrays

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

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Paul King made changes -
Field Original Value New Value
Link This issue is related to GROOVY-4865 [ GROOVY-4865 ]
Paul King made changes -
Summary Collections could benefit from a takeWhile method Groovy could benefit from DGM takeWhile and dropWhile methods
Assignee Paul King [ paulk ]
Paul King made changes -
Status Open [ 1 ] Resolved [ 5 ]
Fix Version/s 2.0-beta-3 [ 18244 ]
Fix Version/s 1.8.7 [ 18317 ]
Resolution Fixed [ 1 ]
Paul King made changes -
Status Resolved [ 5 ] Closed [ 6 ]

People

  • Assignee:
    Paul King
    Reporter:
    Andrew Taylor
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Dates

  • Created:
    Updated:
    Resolved: