ruby-1.9.3

问题 A cookie associated with a cross-site resource at https://example.com/ was set without the SameSite attribute. It has been blocked, as Chrome now only delivers cookies with cross-site requests if they are set with SameSite=None and Secure . You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032. Please let me know how to set the SameSite

问题 Assume x is a gem, that contains both Hello and Goodbye classes. If I write a program that require 'x' , but only uses the Hello class. Is the Goodbye class loaded as well? 回答1: You include scripts or files, not gems. With require 'x' you load the file x.rb . Which x.rb you load is defined by the search path, the search pathes can be modified by gem definitions (what you didn't use in your example code). Everything inside the file x.rb is loaded. If x.rb contains other require commands, those

问题 I knew that puts return always nil by itself. But knowing that fact already I have started to play around it. here it is: >> puts => nil # Good, you are doing what I expected. >> puts 15 15 => nil # nil is for puts and 15 it printed,as it is assigned to do. perfect still. >> puts a = 5 + 2 7 => nil # still good. Now I will do a bit more with puts to see how robust it is. >> puts a= 5 + 2;b= 2+3 7 => 5 #ahh! where is nil? >> puts a= 5 + 2;b= 2+3;c= 4+8 7 => 12 # again no nil. Another confusion

问题 What is the best way to achieve the matching position (the index that would be returned by =~ ) for each match when using gsub or scan ? 回答1: "hello".gsub(/./) { Regexp.last_match.offset(0).first } => "01234" See Regexp.last_match and MatchData. 回答2: I came to this problem from a different direction, and could not come up with a decent solution (that is, understandable, maintainable) to do this with either gsub or scan (both built-in methods of String class). So I asked "Why do it this way?..

问题 What is the best way to achieve the matching position (the index that would be returned by =~ ) for each match when using gsub or scan ? 回答1: "hello".gsub(/./) { Regexp.last_match.offset(0).first } => "01234" See Regexp.last_match and MatchData. 回答2: I came to this problem from a different direction, and could not come up with a decent solution (that is, understandable, maintainable) to do this with either gsub or scan (both built-in methods of String class). So I asked "Why do it this way?..

问题 I'm just getting started with trying to move my infrastructure over to Chef, and I think I must be missing something obvious. I'm using the chef-rvm cookbook to install RVM, and I'd like it to install Ruby 1.9.3p125 and set that as the default. Here's my base server role: name "base" description "Basic configuration for all nodes" run_list( 'recipe[git]', 'recipe[sudo]', 'recipe[ubuntu]', 'recipe[rvm]', 'recipe[postgresql::client]' ) override_attributes( :authorization => { :sudo => { :users

问题 I want to have a method defined on Object that takes a block and applies the receiver to the block. An implementation will be like the following: class Object def apply ≺ pr.call(self) end end 2.apply{|x| x * 3} # => 6 Is there already a standard way to do this or a well known library that has a method with similar use? If so, I didn't want to reinvent the wheel. It happens to me very often that, I have a method that takes an optional block, and when there is no block, I want to return

问题 I have upgraded my app to use Ruby 1.9.3p0 and Rails 3.2.2. To get bundler working I changed this: gem 'ruby-debug' to this: gem 'ruby-debug19' Now rails server gives: Could not find archive-tar-minitar-0.5.2 in any of the sources Run `bundle install` to install missing gems. Running bundle install does not help. The error goes away when I remove ruby-debug19 gem from my Gemfile, but then debugging does away too. I also tried changing the Gemfile to: gem 'ruby-debug19', :require => 'ruby

问题 I have upgraded my app to use Ruby 1.9.3p0 and Rails 3.2.2. To get bundler working I changed this: gem 'ruby-debug' to this: gem 'ruby-debug19' Now rails server gives: Could not find archive-tar-minitar-0.5.2 in any of the sources Run `bundle install` to install missing gems. Running bundle install does not help. The error goes away when I remove ruby-debug19 gem from my Gemfile, but then debugging does away too. I also tried changing the Gemfile to: gem 'ruby-debug19', :require => 'ruby

问题 I need to install ruby-debug-base19 in order to active debug on Netbeans IDE, when I execute: $ gem install ruby-debug-base19 I got the following error. Extracted from log generate C:/Ruby193/bin/ruby.exe extconf.rb checking for rb_method_entry_t.body in method.h... no checking for vm_core.h... no C:/Ruby193/lib/ruby/gems/1.9.1/gems/ruby_core_source-0.1.5/lib/ruby_core_source.rb:39: Use RbConfig instead of obsolete and deprecated Config. checking for rb_method_entry_t.body in method.h... no