[py2rb] itemgetter - Qiita

はじめに 移植やってます。 ( from python 3.7 to ruby 2.7 ) itemgetter (Python) def itemgetter(*items): if len(items) == 1: item = items[0] def g(obj): return obj[item] else: def g(obj): return tuple(obj[item] for item in items) return g >>> itemgetter(1)('ABCDEFG') 'B' >>> itemgetter(1,3,5)('ABCDEFG') ('B', 'D', 'F') >>> itemgetter(slice(2,None))('ABCDEFG') 'CDEFG' >>> soldier = dict(rank='captain', name='dott