flatten!()是一個Array類方法,該方法返回展平的數組,如果不需要修改,則返回nil
用法:Array.flatten!()
參數:數組
返回:展平的數組;如果不需要修改,則為nil
範例1:
# Ruby code for flatten!() method
# declaring array
a = [[18, 22],
[ 33, nil, 5, 6]]
# declaring array
b = [[[1, 4, 1, 1, 88, 9]]]
# declaring array
c = [18, 22, nil, nil, 50, 6]
# flatten!
puts "flatten!:#{a.flatten!()}\n\n"
# flatten!
puts "flatten!:#{b.flatten!()}\n\n"
# flatten!
puts "flatten!:#{c.flatten!()}\n\n"
輸出:
flatten!:[18, 22, 33, nil, 5, 6] flatten!:[1, 4, 1, 1, 88, 9] flatten!:
範例2:
# Ruby code for flatten!() method
# declaring array
a = [["abc", "nil", ],
["dog"]]
# declaring array
b = [[[["cow", nil, "dog"]]]]
# declaring array
c = ["cat", nil, nil]
# flatten!
puts "flatten!:#{a.flatten!()}\n\n"
# flatten!
puts "flatten!:#{b.flatten!()}\n\n"
# flatten!
puts "flatten!:#{c.flatten!()}\n\n"
輸出:
flatten!:["abc", "nil", "dog"] flatten!:["cow", nil, "dog"] flatten!:
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注:本文由純淨天空篩選整理自mayank5326大神的英文原創作品 Ruby | Array class flatten!() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。