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implement #last and #empty? #39

Merged
merged 1 commit into from
May 11, 2019
Merged

implement #last and #empty? #39

merged 1 commit into from
May 11, 2019

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moba1
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@moba1 moba1 commented May 10, 2019 •
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Abstract

add #last and #empty? method to List

  • #last: return last element of List
  • #empty?: return true for empty list, false for others

Example

#last

List[1,2,3].last == 3
List.new([] of Int32).last # throw IndexError

#empty?

List[1].empty? == false
List.new([] of Int32).empty? == true

@moba1 moba1 requested a review from alex-lairan May 10, 2019 13:47
@alex-lairan alex-lairan merged commit 8a47d39 into master May 11, 2019
@moba1 moba1 deleted the add/impl-#last-and-#empty branch May 11, 2019 12:55
@alex-lairan alex-lairan mentioned this pull request May 21, 2019
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@moba1 @alex-lairan