Ruby Array size()用法及代碼示例

Array＃size()：size()是一個Array類方法，它返回數組中元素的長度。

用法：Array.size()

參數：數組

返回：數組中元素的長度。

範例1：

# Ruby code for size() 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] 
  
# size method example 
puts "size() method form:#{a.size()}\n\n"
  
puts "size() method form:#{b.size()}\n\n"
  
puts "size() method form:#{c.size()}\n\n"

輸出：

size() method form:6

size() method form:6

size() method form:4

範例2：

# Ruby code for size() method 
  
# declaring array 
a = ["abc", "nil", "dog"] 
  
# declaring array 
c = ["cat", nil] 
  
# declaring array 
b = ["cow", nil, "dog"] 
  
  
# size method example 
puts "size() method form:#{a.size()}\n\n"
  
puts "size() method form:#{b.size()}\n\n"
  
puts "size() method form:#{c.size()}\n\n"

輸出：

size() method form:3

size() method form:3

size() method form:2

相關用法

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