542 questions
I would like to use rubocop on my Mac (Yosemite).$rubocop<filename>Then you can do a syntax check.However, the problem is that the syntax check after saving is not possible in vim.Below is the w...
https://railsguides.jp/getting_started.htmlI am creating an application for rails in accordance with the url tutorial above, but in 5.2 First Form, I will read the contents of new.html.erb.<%=form_...
I'm using Ruby on Rails to try to develop a web app.We implemented the device and set up our own columns (name, age, self-introduction, etc.).What's troubling you right now is Create My Page to displa...
Environment Windows 10 Notebook pchttps://www.monster-dive.com/blog/web_creative/20140407_000147.phpI installed the sass environment along this site, but I cannot compile it.I did the same thing on my...
There are already many load testing tools in the world.I'm thinking about how to make such a tool.I would like to implement it on ruby or python (for now on ruby), so First of all, I was thinking abou...
When I did the following in the Ruby on Rails app, the server did not start up in the development environment (AWS Cloud9).When I looked into the error message, I couldn't find a clue and couldn't sol...
If you read the Rails source, you will see In ActiveSupport Autoload, click The following code was found:def self.extended(base)#:nodoc: base.class_evaldo @_autoloads={} @_under_path=nil @_at_path=...
I have a program that reads the files in the directory and outputs the contents of the files. in `read': Isa directoryThe error appears.I think you're probably saying, That's a directory, but since yo...
I study programming on my own through Google.If you execute the command as follows, you will see an error.commands executed: rails new samplecd samplerailserror messages:=>Booting Puma=>Rails 6....
I have a question.This <%@items.zip(@user~) code would like to have an index number.Does anyone know?Syntax error.<%@items.zip(@user_items).with_index do|item,ui,index|%> <td class=invert&...
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