Ruby Array class each()用法及代碼示例

Array＃each()：each()是一種Array類方法，通過對給定塊中的條件對self中的每個元素執行一次返回數組。

用法： Array.each()

參數：  block - condition to follow

返回： Each array element following the condition

代碼＃1：each()方法示例

# Ruby code for each() method 
  
# declaring array 
a = ["abc", "nil", "dog"] 
  
# declaring array 
b = ["hello", "hi", "dog"] 
  
# each 
puts "each:#{a.each {|x| print x, " -- "}}\n\n"

輸出：

abc -- nil -- dog -- each:["abc", "nil", "dog"]

代碼2：each()方法示例

# Ruby code for each() method 
  
# declaring array 
a = ["abc", "nil", "dog"] 
  
# declaring array 
b = ["hello", "hi", "dog"] 
  
  
# each 
puts "each:#{b.each{|x| x = 2}}\n\n"

輸出：

each:["hello", "hi", "dog"]

相關用法

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