Created
April 16, 2011 03:12
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| List.metaClass.safeFirst = { -> delegate[0] } | |
| List.metaClass.safeLast = { -> delegate.size() > 0 ? delegate[-1] : null } | |
| def a = [] | |
| assert null == a.safeFirst() | |
| assert null == a.safeLast() | |
| a += [1,2] | |
| assert 1 == a.safeFirst() | |
| assert 2 == a.safeLast() |
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