Ruby 数组take()函数

Array#take() : take() 是一个数组类的方法，用于返回数组中的元素数量。

语法。Array.take()

参数。数组

返回：数组中的元素数量。

例子 #1 :

# Ruby code for take() 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]
  
# take method example
puts "take() method form : #{a.take(2)}\n\n"
  
puts "take() method form : #{b.take(1)}\n\n"
  
puts "take() method form : #{c.take(3)}\n\n"

输出:

take() method form : [18, 22]

take() method form : [1]

take() method form : [18, 22, 50]

例子 #2 :

# Ruby code for take() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
c = ["cat", nil]
  
# declaring array
b = ["cow", nil, "dog"]
  
# take method example
puts "take() method form : #{a.take(2)}\n\n"
  
puts "take() method form : #{b.take(1)}\n\n"
  
puts "take() method form : #{c.take(3)}\n\n"

输出:

take() method form : ["abc", "nil"]

take() method form : ["cow"]

take() method form : ["cat", nil]