Ruby on Rails:variable.hash_set.inspect 的漂亮打印...有没有办法在控制台中漂亮地打印 .inpsect? [英] Ruby on Rails: pretty print for variable.hash_set.inspect ... is there a way to pretty print .inpsect in the console?

问题描述

我发现自己在我的功能测试中做了很多 puts .inpsect 来确保我知道数据是如何格式化的......但是当哈希对象中的每个条目之后没有新行时，哈希很难读取.无论如何，也许是一个宝石?，漂亮地打印哈希?

I findy myself doing a lot of puts .inpsect s in my functional testing to make sure I know how the data is formatted... but hashes are hard to read when there is no new lines after each entry in a hash object. Is there anyway, maybe a gem?, to pretty print hashes?

所以它看起来像这样:

{ 
  entry1 => { 
              entrey1.1 => 1,
              entry1.2 => 3
            },
  entry2 => 3
}

而不是:{ entry1 =>{ 入口1.1 =>1、entry1.2 =>3}, entry2 =>3 }?

谢谢！

推荐答案

你可以使用 awesome_print gem.

you could use the awesome_print gem for that.

https://github.com/michaeldv/awesome_print

require 'awesome_print' # if you like to have it in irb by default, add it to your irbrc
>> ap({:a => 1, :b => [1,2,3], :c => :d})
{
    :b => [
        [0] 1,
        [1] 2,
        [2] 3
    ],
    :a => 1,
    :c => :d
}

顺便说一句，您也可以使用 p object 代替 puts object.inspect，它在打印之前在对象中调用检查.另一种打印对象比默认 puts 更好的方法是使用 ruby​​ stdlib 中的 pp ( http://ruby-doc.org/stdlib/libdoc/pp/rdoc/index.html)

btw, instead of puts object.inspect you can also just use p object which calls inspect in the object before printing it. another way to print objects a little nicer than the default puts is to use pp from the ruby stdlib ( http://ruby-doc.org/stdlib/libdoc/pp/rdoc/index.html )

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