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| irb(main):047:0> peoples = ["Alice", "Bob", "Eve"] => ["Alice", "Bob", "Eve"] irb(main):048:0> peoples[0] => "Alice" irb(main):049:0> peoples[1] => "Bob" irb(main):050:0> peoples[-1] => "Eve"
irb(main):051:0> foo = [42, "Cindy", 0.02, true] => [42, "Cindy", 0.02, true] irb(main):052:0> foo << 'd' => [42, "Cindy", 0.02, true, "d"] irb(main):053:0> foo.push(1337) => [42, "Cindy", 0.02, true, "d", 1337] irb(main):055:0> foo.insert(2, 0.05) => [42, "Cindy", 0.05, 0.02, true, "d", 1337] irb(main):056:0> foo.pop => 1337 irb(main):057:0> foo => [42, "Cindy", 0.05, 0.02, true, "d"] irb(main):060:0> foo.delete_at(2) => 0.05 irb(main):061:0> foo => [42, "Cindy", 0.02, true, "d"]
irb(main):065:0* puts foo 42 Cindy 0.02 true d => nil irb(main):066:0> print foo [42, "Cindy", 0.02, true, "d"]=> nil
irb(main):068:0* alph = ['a', 'c', 'z', 'e'] => ["a", "c", "z", "e"] irb(main):069:0> alph[1..3] => ["c", "z", "e"]
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