红宝石 |数组 push()函数

Array#push() : push()是一个 Array 类方法，它将给定对象附加到该数组的末尾。

Syntax: Array.push()

Parameter: Array

Return: appends the given object(s) on to the end of this array.

示例 #1：

# Ruby code for push() method
  
# declaring array
a = [18, 22, 33, nil, 5, 6]
  
# declaring array
b = [1, 4, 1, 1, 88, 9]
  
# declaring array
c = [34, 5, 7]
  
# push method example
puts "push() method form : #{a.push(3)}\n\n"
  
puts "push() method form : #{b.push()}\n\n"
  
puts "push() method form : #{c.push(2)}\n\n"

输出 ：

push() method form : [18, 22, 33, nil, 5, 6, 3]

push() method form : [1, 4, 1, 1, 88, 9]

push() method form : [34, 5, 7, 2]

示例 #2：

# Ruby code for push() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
c = [nil, "abc", "nil", "dog"]
  
# declaring array
b = ["cow", nil, "dog"]
  
  
# push method example
puts "push() method form : #{a.push(2)}\n\n"
  
puts "push() method form : #{b.push(1)}\n\n"
  
puts "push() method form : #{c.push(0)}\n\n"

输出 ：

push() method form : ["abc", "nil", "dog", 2]

push() method form : ["cow", nil, "dog", 1]

push() method form : [nil, "abc", "nil", "dog", 0]