Ruby Array concat()用法及代码示例

Array＃concat()：concat()是一个Array类方法，该方法将两个数组附加在一起后返回该数组。

用法： Array.concat()

参数：  Arrays to be combined

返回： Append the two arrays

代码＃1：concat()方法示例

# Ruby code for concat() method 
# adding elements at the end 
  
# declaring array 
a = [18, 22, 33, nil, 5, 6] 
  
# declaring array 
b = [5, 4, nil, 1, 88, 9] 
  
# declaring array 
c = [18, 22, nil, 40, 50, 6] 
  
# COMBINING TWO ARRAYS 
puts "combining a and b:#{a.concat(b)}\n\n"
  
puts "combining c and b:#{b.concat(c)}\n\n"
  
puts "combining a and c:#{c.concat(a)}\n\n"

输出：

combining a and b:[18, 22, 33, nil, 5, 6, 5, 4, nil, 1, 88, 9]

combining c and b:[5, 4, nil, 1, 88, 9, 18, 22, nil, 40, 50, 6]

combining a and c:[18, 22, nil, 40, 50, 6, 18, 22, 33, nil, 5, 6, 5, 4, nil, 1, 88, 9]

代码2：concat()方法示例

# Ruby code for concat() method 
# adding elements at the end 
  
# declaring array 
a = ["abc", "xyz", "dog"] 
  
# declaring array 
b = ["cow", "cat", "dog"] 
  
# declaring array 
c = ["cat", "1", "dog"] 
  
# COMBINING TWO ARRAYS 
puts "combining a and b:#{a.concat(b)}\n\n"
  
puts "combining c and b:#{b.concat(c)}\n\n"
  
puts "combining a and c:#{c.concat(a)}\n\n"

输出：

combining a and b:["abc", "xyz", "dog", "cow", "cat", "dog"]

combining c and b:["cow", "cat", "dog", "cat", "1", "dog"]

combining a and c:["cat", "1", "dog", "abc", "xyz", "dog", "cow", "cat", "dog"]

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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 concat() operation。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。