English 中文(简体)
新的散射线中的关键
原标题:key in ruby new hash

与Ruby 1.9.2新海因子有过争执。 在1.9.2中,我怎么能把任何目标作为关键?

在1.8.7亿英亩的矿区中,有:

a="b" 
{"a" => "some",a => "another value",:a => "3rd value"}

但是,在1.9.2和1.92段中, 我们可以 t(或者如果我错了吗?)”

1.9.2h:

{a: "some"} =>  {:a=>"s"} #it convert to old hash format

......

a="a" 
{a: "..."} # This doesn t work

{"a": "some value"} => syntax error, unexpected  } , expecting $end
from /home/naveed/.rvm/rubies/ruby-1.9.2-p290/bin/irb:16:in `<main> 

{1: "s"} =>

SyntaxError: (irb):11: syntax error, unexpected  : , expecting tASSOC {1: "s"}
最佳回答

页: 1

Any 物体可使用arrow=>,甚至可使用符号。

问题回答

用另一种方式说,新的特征是新的一般 has子,在钥匙是字面的纸面上打上了具体的印记。 www.un.org/Depts/DGACM/index_spanish.htm => 1},而且所有内容。 如果你有别的钥匙,你必须使用常年金。





相关问题
rails collection_select vs. select

collection_select and select Rails helpers: Which one should I use? I can t see a difference in both ways. Both helpers take a collection and generates options tags inside a select tag. Is there a ...

SSL slowness in EC2

We ve deployed our rails app to EC2. In our setup, we have two proxies on small instances behind round-robin DNS. These run nginx load balancers for a dynamically growing and shrinking farm of web ...

Auth-code with A-Za-z0-9 to use in an URL parameter

As part of a web application I need an auth-code to pass as a URL parameter. I am currently using (in Rails) : Digest::SHA1.hexdigest((object_id + rand(255)).to_s) Which provides long strings like : ...

RubyCAS-Client question: Rails

I ve installed RubyCAS-Client version 2.1.0 as a plugin within a rails app. It s working, but I d like to remove the ?ticket= in the url. Is this possible?

activerecord has_many :through find with one sql call

I have a these 3 models: class User < ActiveRecord::Base has_many :permissions, :dependent => :destroy has_many :roles, :through => :permissions end class Permission < ActiveRecord::...

Ordering a hash to xml: Rails

I m building an xml document from a hash. The xml attributes need to be in order. How can this be accomplished? hash.to_xml

Text Editor for Ruby-on-Rails

guys which text editor is good for Rubyonrails? i m using Windows and i was using E-Texteditor but its not free n its expired now can anyone plese tell me any free texteditor? n which one is best an ...

How to get SQL queries for each user where env is production

I’m developing an application dedicated to generate statistical reports, I would like that user after saving their stat report they save sql queries too. To do that I wrote the following module: ...

热门标签