Ruby：如何跨多行初始化数组

I have a small Ruby script where an array is initialized to hold a few strings

我有一个小的Ruby脚本，其中一个数组被初始化以保存一些字符串

MyArray = ["string 1", "string 2" , "string 2" ]

The problem is that I have quite a few strings in the initialization list and I would like to break the line:

问题是我在初始化列表中有很多字符串，我想打破这一行：

MyArray = [
            "string 1"
           ,"string 2" 
           ,"string 2"
          ]

but Ruby flags a syntax error for this format I tried adding "\" to the end of each line without any success.

但是Ruby标记了这种格式的语法错误我尝试在每行的末尾添加“\”而没有任何成功。

How can this be accomplished in Ruby?

如何在Ruby中完成？

4 个解决方案

#1

You will want to put the comma, after the item like so

你会想把逗号放在这样的项目之后

myarray = [
  "string 1",
  "string 2",
  "string 3"
]

Also, if you might be thinking of putting the comma before the item, for say easy commenting or something like that while your working out your code. You can leave a hanging comma in there with no real adverse side effects.

此外，如果您可能考虑将逗号放在项目之前，那么在您编写代码时可以轻松评论或类似。你可以留下悬挂的逗号，没有真正的不良副作用。

myarray_comma_ended = [
  "test",
  "test1",
  "test2", # other langs you might have to comment out this comma as well
  #"comment this one"
]

myarray_no_comma_end = [
  "test",
  "test1",
  "test2"
]

#2

MyArray = %w(
    string1 
    string2 
    string2
)

#3

Another way to create an array in multi-line is:

在多行中创建数组的另一种方法是：

myArray = %w(
   Lorem 
   ipsum 
   dolor
   sit
   amet
)

#4

MyArray = Array.new(
            "string 1"
           ,"string 2" 
           ,"string 2"
          )

#1