Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged ruby
0
votes
644
views
1
answer
ruby - RVM: Uninstalling all gems of a gemset
I have global gems and various gemsets. I want to remove all gems of a gemset. Is there a way do to this, besides uninstalling the gemset? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
616
views
1
answer
ruby - How do you pass arguments to define_method?
I would like to pass an argument(s) to a method being defined using define_method, how would I do that? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
414
views
1
answer
ruby - When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested ... those techniques would be used? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
450
views
1
answer
ruby - How do I dump an object's fields to the console?
When I'm running a simple Ruby script, what's the easiest way to dump an object's fields to the console? I ... will work with arrays as well. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
606
views
1
answer
ruby - rails - Redirecting console output to a file
On a bash console, if I do this: cd mydir ls -l > mydir.txt The > operator captures the standard input and ... a better option, I'm all ears. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
640
views
1
answer
ruby - RVM is not a function, selecting rubies with 'rvm use ...' will not work
List the ruby versions console:~$ rvm list rvm rubies ruby-2.0.0-p481 [ i686 ] # => - current # ... /integration/gnome-terminal/ for a example. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
637
views
1
answer
ruby - Rspec: "array.should == another_array" but without concern for order
I often want to compare arrays and make sure that they contain the same elements, in any order. Is there a ... elements don't implement #<=> See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
435
views
1
answer
ruby - What exactly is Arel in Rails 3.0?
I understand that it is a replacement for ActiveRecord and that it uses objects instead of queries. But... ... to use with stored procedures? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
851
views
1
answer
ruby - How to test if parameters exist in rails
I'm using an IF statement in Ruby on Rails to try and test if request parameters are set. Regardless of whether or ... ... do something ... end See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
639
views
1
answer
ruby - How do I run only specific tests in Rspec?
I think there's a way to run only tests with a given label. Anybody know? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
1.0k
views
1
answer
ruby on rails - i18n Pluralization
I want to be able to translate pluralized strings in i18n in rails. A string can be : You have 2 kids or You have ... view. How can I do that ? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
675
views
1
answer
ruby on rails - Pushing app to heroku problem
I am trying to push my app to heroku and I get the following message: $ heroku create Creating electric-meadow- ... a new one? Any suggestions? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
623
views
1
answer
ruby - How do you run a single test/spec file in RSpec?
I want to be able to run a single spec file's tests — for the one file I'm editing, for example ... /spec/spec_helper.rb ./spec/db_spec.rb See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
654
views
1
answer
ruby - How to drop columns using Rails migration
What's the syntax for dropping a database table column through a Rails migration? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
506
views
1
answer
ruby on rails - Why can't show restaurant list?
I'm trying to make some restaurant list. I associated two tables, and then write this code. class Restaurant ... problem? Thanks in advance. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
364
views
1
answer
ruby on rails - I need help properly forming this ActiveRecord association
Basically, a User can participate in one or more events as either (or potentially both) a vendor and as a member ... 2014-08-30 15:02:04.70209 See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
421
views
1
answer
ruby on rails - Escape non HTML tags in plain text (convert plain text to HTML)
Using Rails, I need to get a plain text and show it as HTML, but I don't want to use <pre> tag, as it changes the format. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
729
views
1
answer
ruby on rails - Passenger says Bundler:GemNotFound error while the bundle install says it's there
i get Passenger error on shared hosting Could not find i18n-0.6.0 in any of the sources (Bundler::GemNotFound) ... hosting? how do i solve it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
425
views
1
answer
ruby - Arrays misbehaving
Here's the code: # a = Array.new(3, Array.new(3)) a = [[nil,nil,nil],[nil,nil,nil]] a[0][0] = 1 a.each ... , nil] [1, nil, nil] So why is that? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
398
views
1
answer
ruby on rails - What is a version control system? How is Git useful?
like for example i am doing ruby on rails and using git for version control. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
513
views
1
answer
ruby on rails - Inserting an array using Sequel gem in PostgreSQL
i created a table with the following schema in code DB.create_table :Pokemon do primary_key :id String :first_name ... Text array in a column See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
408
views
1
answer
ruby - What does #{...} mean?
Such as in the following code from Why's Poignant Guide: def wipe_mutterings_from( sentence ) unless sentence.respond_to? ... ' if close end end See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
381
views
1
answer
ruby - rspec --init not working/ `mkd ir': Invalid argument - ./C: (Errno::EINVAL)
I'm following codeschool's class on rspec. Installing worked fine. I made a file called rspec-zombie for the project. ... /rspec:23:in `<main>' See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
344
views
1
answer
ruby - How to declare Hash.new(0) with 0 default value for counting objects in JavaScript?
I'm trying to iterate through an array of digits and count how many times each digit is found in the array. ... Hash as an Object in JavaScript? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
503
views
1
answer
ruby on rails - PDFkit hangs when generating a pdf with an image
I want to render a webpage as a PDF. It uses a single image, and I've read that you need to supply the absolute ... ' bin/rails:4:in `<main>' See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
515
views
1
answer
ruby - How does negative index work with `Array#[]=`?
I tried to see how Array#[]= works, and played around: enum[int] = obj → obj enum[start, length] = obj → obj enum[range] ... = [3,4] #=> [3, 4] See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
578
views
1
answer
ruby - Rails query string with a period (or full stop).
I am currently trying to get a handle on RoR. I am passing in two strings into my controller. One is ... guidance would be greatly appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
453
views
1
answer
ruby - Why won't a longer token in an alternation be matched?
I am using ruby 2.1, but the same thing can be replicated on rubular site. If this is my string: 儘管中國婦幼衛生 ... is foo. That makes sense to me. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
Page:
« prev
1
...
33
34
35
36
37
38
39
40
41
42
43
...
121
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] react native - how to spread text to empty new lines
[2] react native - Expo Build:ios Authentication with Apple Developer Portal failed
[3] 为什么webpack打包出来的说找不到vue?
[4] xcode - How to play a video in launch screen in SwiftUI
[5] ios - How present a Authendication view controller Like Google and Facebook?
[6] code-push 如何强制退出登录,删除登录凭证?
[7] 使用acme.sh 申报SSL的时候一直报错
[8] eloquent - Laravel - use multiple value in where DB query
[9] New Apps Script IDE too helpful. Can you turn it off?
[10] python - Invalid requests
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...