ruby

问题 describe Rspec do it 'should print arrays in a readable manner' do arr = [ [0, :a, -1], [1, :b, -2], [2, :c, -3], [3, :d, -4], [4, :e, -5], [6, :g, -7], [7, :h, -8], [8, :i, -9] ] arr.should eql [] end end On failure: Failures: 1) Rspec should print arrays in a readable manner Failure/Error: arr.should eql [] expected: [] got: [[0, :a, -1], [1, :b, -2], [2, :c, -3], [3, :d, -4], [4, :e, -5], [6, :g, -7], [7, :h, -8], [8, :i, -9]] Is there a way to tell Rspec to pretty print its failures? My

问题 Note: This has already been posted on Ruby Forum some weeks ago. I'm crossposting it here, because I didn't get any response so far Dir.glob provides an optional parameter, usually referred as 'flags'. Where can I find a documentation about what flags are possible? The Ruby 2.0 docs just say that the flags are "the same as used in File.fnmatch". Looking up the documentation of File.fnmatch, I only find the explanation that these are the "FNM_xxx" flags, which can be or'ed together. I could

问题 Note: This has already been posted on Ruby Forum some weeks ago. I'm crossposting it here, because I didn't get any response so far Dir.glob provides an optional parameter, usually referred as 'flags'. Where can I find a documentation about what flags are possible? The Ruby 2.0 docs just say that the flags are "the same as used in File.fnmatch". Looking up the documentation of File.fnmatch, I only find the explanation that these are the "FNM_xxx" flags, which can be or'ed together. I could

问题 I'm trying to figure out how I can change array of integers into array of ranges. For example I want to take this array: ar = [0, 49, 14, 30, 40, 23, 59, 101] into ar = [0..49, 14..30, 40..23, 59..101] Given array always will be even. I want to take each two values as borders of ranges. I have tried to seperate it for two arrays. One with odd indexes second with even. a = ar.select.with_index{|_,i| (i+1) % 2 == 1} b = ar.select.with_index{|_,i| (i+1) % 2 == 0} I don't have an idea how to use

问题 I'm trying to figure out how I can change array of integers into array of ranges. For example I want to take this array: ar = [0, 49, 14, 30, 40, 23, 59, 101] into ar = [0..49, 14..30, 40..23, 59..101] Given array always will be even. I want to take each two values as borders of ranges. I have tried to seperate it for two arrays. One with odd indexes second with even. a = ar.select.with_index{|_,i| (i+1) % 2 == 1} b = ar.select.with_index{|_,i| (i+1) % 2 == 0} I don't have an idea how to use

问题 I'm running to issue installing Ruby 2.0.0 on a new macbook with macOS Catalina (version 10.15.7). At first I installed Ruby with rvm which did not work. I figured out that it was because Catalina's default terminal is ZSH instead of Bash (https://gorails.com/setup/osx/10.15-catalina). I was able to install Ruby 2.6.3 with the instructions but the issue is that the project I'm currently working on was written in Ruby 2.0.0. I tried installing this version with rbenv install 2.0.0-p0 but I ran

问题 I'm running to issue installing Ruby 2.0.0 on a new macbook with macOS Catalina (version 10.15.7). At first I installed Ruby with rvm which did not work. I figured out that it was because Catalina's default terminal is ZSH instead of Bash (https://gorails.com/setup/osx/10.15-catalina). I was able to install Ruby 2.6.3 with the instructions but the issue is that the project I'm currently working on was written in Ruby 2.0.0. I tried installing this version with rbenv install 2.0.0-p0 but I ran

问题 I am working on a rails app that has a WP home page, and also some images that are being load from WP. On localhost we don't have access to WP content that leads to having a lot of routing errors in logs, in example: Started GET "/wp-content/uploads/2014/03/facebook-icon1.png" for 127.0.0.1 at 2015-11-20 15:10:48 +0200 ActionController::RoutingError (No route matches [GET] "/wp-content/uploads/2014/03/facebook-icon1.png"): actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb

问题 I have a problem for using password reset function of this gem. https://github.com/lynndylanhurley/devise_token_auth This is from the document. /password/edit GET "Verify user by password reset token. This route is the destination URL for password reset confirmation. This route must contain reset_password_token and redirect_url params. These values will be set automatically by the confirmation email that is generated by the password reset request." When users forget theirs passwords, they can

问题 I write something like this in Ruby: if a.max == a[0] brand = b[0] elsif a.max == a[1] brand = b[1] elsif a.max == a[2] brand = b[2] elsif a.max == a[3] brand = b[3] end a and b both are unique arrays. Is there any way to check all if and elsif 's in the same condition? Only one condition for a[0] , a[1] , a[2] and a[3] ? 回答1: Array#index might help in cases like these (assuming the size of a and b is the same): brand = b[a.index(a.max)] In cases in which the array a might be empty, you will