it"s always the fault of this red area. I"m new here. I don"t know
to ask for help. Thank you
it"s always the fault of this red area. I"m new here. I don"t know
to ask for help. Thank you
execute this solution sudo apt-get install ruby-dev
recently read railstutorial . the model generated through rails g model User name:string email:string has gradually become the following virtues with the tutorials: class User < ApplicationRecord before_save { self.email = email.downcase } v...
recently in the study of elk, need to embed ruby code, but also hope to understand ruby to help, explain, thank you! just explain what each of the following two parts represents. xx "xxx" do end xx("xxx&q...
Environment: rails webpacker: vue + vuex + vue-router + iview problem: change the state value through mutation, and through the vue browser debugging tool, you can see that mutation triggers normally, but the variable for computed to get the correspond...
Please observe the following code: < a> refinement : Because refinement activation should be as static as possible. ...
I m not familiar with the git command. I used vscode s git management tool to "undo the last commit " twice, but now I don t want to undo those commits. How can I restore them? ...
can homebrew only install the latest version of the software? where is the source of the software, homebrew s own server? what s the difference between downloading and installing the root itself from the official website? ...
this is a comment page of a school curriculum grading system. I want to do this: 1. Count the number of words in each comment 2. When the whole loop is over, count out the total number of words of all comments < div id= "header " > < H1 > Course R...
for example, there is a form like this: <input type="text" name="user[name]" value="bob"> is parsed into the following format in rails params { user: { name: "bob" } } so there are two questions I ...
mac vue-cli initialization failed. Here is the error. $vue init webpack pro Unknown command init. vue-cli Failed to download repo vuejs-templates [object Object]: Response code 404 (Not Found) I used npm cnpm brew and tried the same error on one...
when I first got in touch with ruby, I saw that my colleague had this code when I was in review today: provider = campaign_type == :entry ? Settings.pay_method_to_provider[pay_method] : self.auth_provider it s hard to understand at first glance. wh...
rails polymorphism problem: I now have questions , articles , comments three models, one question corresponds to multiple comments , and a article corresponds to multiple comments . Now how to submit comments under question ? my model...
Today, I was working on a machine learning project and encountered a small problem. I want to extract a column of data using the regular expression and then run it and find that there is no name1 data. This symbol is very puzzling for the Great God s ...
compass create xxxx command the resulting project directory does not have "images " and "javascripts " folders, only "stylesheets ", "sass " and config.rb ...
because the back end uses ajax to interact with the front end, it becomes necessary for the back end to write interface documentation. I used to use word to write interface documents, but recently I worked with colleagues to write the back-end, word is ...
-- binary= usr bin firefox -- port=4444 http: 127.0.0.1:4444 session < H1 > < Net::HTTPInternalServerError:0x00000001865438 > < H1 > var lib gems 2.3.0 gems selenium-webdriver-3.13.0 lib selenium webdriver remote response.rb:69:in `assert_ok : P...
A rookie. After installing lightGBM with pip, there is a problem with the reference (the system is High Sierra) In [3]: import lightgbm --------------------------------------------------------------------------- OSError ...
Ruby on rails ID display is not correct < H2 > I tried to recreate the table on the terminal, but the ID showed 4, and I was advised to use each_with_index, but I didn t know where to put it. < H2 > related codes < div class= "container " > < d...
after changing the gitlab.rb file, when reloading the configuration gitlab-ctl reconfigure, it will not move when running to execute [clear the gitlab-rails cache] action run, and the cpu will rise to 100%. Solve the situation and how to solve ....
attach a log 14 Console 55 0x002A0027 0x0006354A 0x11111100 0x00000000 15.582676 + 0800 default [0x7fc4989de600] Created session 14 Created session 55 Console 15.582917 + 0800 Console default [0x7fc4989de600] Decoding: C0 0x002A0027 0x0006354A 0x1111...
problem description I wrote a decorator with parameters, and now I need the decorator to use different parameters according to different conditions. the environmental background of the problems and what methods you have tried I wrote a decorator w...