Array#reverse!():reverse!()是一个Array类方法,该方法返回就位的self
用法:Array.reverse!()
参数:数组
返回:逆向自我
范例1:
# Ruby code for reverse!() method
# declaring array
a = [18, 22, 33, nil, 5, 6]
# declaring array
b = [1, 4, 1, 1, 88, 9]
# declaring array
c = [18, 22, 50, 6]
# reverse! method example
puts "reverse!() method form:#{a.reverse!()}\n\n"
puts "reverse!() method form:#{b.reverse!()}\n\n"
puts "reverse!() method form:#{c.reverse!()}\n\n"
输出:
reverse!() method form:[6, 5, nil, 33, 22, 18] reverse!() method form:[9, 88, 1, 1, 4, 1] reverse!() method form:[6, 50, 22, 18]
范例2:
# Ruby code for reverse!() method
# declaring array
a = ["abc", "nil", "dog"]
# declaring array
c = ["cat", nil]
# declaring array
b = ["cow", nil, "dog"]
# reverse! method example
puts "reverse!() method form:#{a.reverse!()}\n\n"
puts "reverse!() method form:#{b.reverse!()}\n\n"
puts "reverse!() method form:#{c.reverse!()}\n\n"
输出:
reverse!() method form:["dog", "nil", "abc"] reverse!() method form:["dog", nil, "cow"] reverse!() method form:[nil, "cat"]
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注:本文由纯净天空筛选整理自mayank5326大神的英文原创作品 Ruby | Array reverse!() function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。