Ruby Array any?()用法及代码示例

any？()是一个Array类方法，该方法检查模式的存在并将集合中的每个元素传递给给定的块。

用法：Array.any?()

范例1：

# Ruby code for any?() method 
  
# checking pattern 
puts "pattern:#{%w[geeks or geeks].any? { |word| word.length <= 3 }}\n\n"
  
puts "pattern:#{%w[dot grow cat].any? { |word| word.length >= 4 }}\n\n"

输出：

pattern:true

pattern:true

说明：

In above code two conditions are giving i.e.
- word_length should be equal or less than 3 and
- word_length should be equal or greater than 4
If the pattern follows it (as in the code), it results yes otherwise false

范例2：

# Ruby code for any?() method 
  
# checking pattern 
puts "pattern:#{%w[geeks or geeks].any?()}\n\n"
  
puts "pattern:#{[].any?}\n\n"

输出：

pattern:true

pattern:false

说明：

In this code
part a) - true as it returns a pattern
part b) - false as it returns nil pattern