flatten()是一個Array類方法,它返回展平的數組,即一維數組
用法:Array.flatten()
參數:數組
返回:一維陣列
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]]]
# flatten
puts "flatten:#{a.flatten()}\n\n"
# flatten
puts "flatten:#{b.flatten()}\n\n"
輸出:
flatten:[18, 22, 33, nil, 5, 6] flatten:[1, 4, 1, 1, 88, 9]
範例2:
# Ruby code for flatten() method
# declaring array
a = [["abc", "nil", ],
["dog"]]
# declaring array
b = [[[["cow", nil, "dog"]]]]
# flatten
puts "flatten:#{a.flatten()}\n\n"
# flatten
puts "flatten:#{b.flatten()}\n\n"
輸出:
flatten:["abc", "nil", "dog"] flatten:["cow", nil, "dog"]
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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。