...are usually believed to have worse performance than those defined via def. Hence, developers sometimes prefer using class_eval to define methods using def, like this: class_eval "def #{attribute...
...for_realsies?; do_things; end" You can benchmark methods defined like this and will see that those defined via def actually do perform better. Basically, it ranks like this:
...for an option like Yarn's --frozen-lockfile which validates that. Here is what seems to be the way to do it. Using npm clean-install Running npm clean-install...
...versions while npm clean-install will complain. You can use npm ci as a shortcut for npm clean-install. Combine with a cache The idea of a "clean install" is...
When using Rails to truncate strings, you may end up with strings that are still too long for their container or are not as long as they could be. You...
...did not use it. Since Firefox 7 you can! Note that this only works for single-line texts. If you want to truncate tests across multiple lines, use a JavaScript...
Version 3.7.0 broke some things in complex forms. Sorry for that. Concurrent user input is hard. 3.7.1 This change fixes two regressions for form field watchers, introduced by 3.7.0:
...a validation for a fragment while a validation request for the same target is still loading. Validations no longer throw an error if a targeted fragment is destroyed while a...
To set a cookie in your test browser for cucumber tests, you need to know which driver you are using. Use the step below according to your driver.
...to "([^\"]+)"$/ do |key, value| headers = {} Rack::Utils.set_cookie_header!(headers, key, value) cookie_string = headers['Set-Cookie'] Capybara.current_session.driver.browser.set_cookie(cookie_string) end Note that Rack::Utils is only used to...
...with additional margin towards their container. Starting with version 121, Chrome now also supports the spec-compliant properties scrollbar-width and scrollbar-color. These allow less styling. You may only...
...track and thumb colors, and a non-specific width like auto, thin, or none. .example { scrollbar-width: thin; scrollbar-color: blue lightblue; } Styling the -webkit-scrollbar-* pseudo elements is still...
If the project team consists of at least 2 members, do a daily standup. It should not take much longer than 15 minutes. Format Tell everyone else
if there are new developments everyone needs to know about A "still working on X, will probably be done today" is totally fine. No need to tell...
In order to have monitoring for Sidekiq (like queue sizes, last run of Sidekiq) your application should have a monitoring route which returns a json looking like this: { "sidekiq": {
...queue_sizes": { "dead": 0, "retries": 0, "monitoring": 0, "low_priority": 0, "mails": 0, "default": 0, "elasticsearch": 0, "high_priority": 0, "file_upload": 0, "scheduled": 0 }, "active_workers": 0 }, "timestamps": {
JavaScript objects can have getter and setter functions that are called when a property is read from or written to. For example, if you'd like an object that has...
...person.firstName and person.lastName: var person = { firstName: 'Guybrush', lastName: 'Threepwood', get fullName() { return this.firstName + " " + this.lastName; }, set fullName(name) { var parts = name.split(" "); this.firstName = parts[0]; this.lastName = parts[1]; } }; The code below shows...
...bodies with a maximum of 4096 characters. You can work around that limit by splitting the text into smaller fragments and stitch together the resulting mp3 files with a CLI...
...tool like mp3wrap or ffmpeg. Example Ruby Implementation Usage input_text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua...
tl;dr: Ruby's Bundler environment is passed on to system calls, which may not be what you may want as it changes gem and binary lookup. Use Bundler.with_original...
...env to restore the environment's state before Bundler was launched. Do this whenever you want to execute shell commands inside other bundles. Example outline Consider this setup: my_project/Gemfile...
Select2 is a fantastic library for advanced dropdown boxes, but it depends on jQuery. Alternatives Tom Select There is a selectize.js fork called Tom Select. It is well tested, comes...
...with Bootstrap 3, Bootstrap 4 and Bootstrap 5 styles and is easy to use. You might miss some advanced features. Known issues: Dynamic opt-groups in AJAX requests are not...
Note: You won't need this for single lines of text. In this case it is better to just use the text-overflow property: Use CSS "text-overflow" to truncate...
...use -webkit-line-clamp in your CSS/SASS to natively render an ellipsis (...) after a specific amount of lines for a multi-line text in your HTML. Earlier, it was necessary...
...at the same time. When assets did not change, we do not want to spend time compiling them. Here is our solution for all that. Its concept should work for...
...all test suites. Copy the following to config/initializers/webpacker_compile_once.rb. It will patch Webpacker, but only for the test environment: # Avoid hardcoded asset hosts in webpack, otherwise all chunks would be loaded...
This is for people recovering from Subversion. Get an existing from the server for the first time git clone git@example.com:repositoryname See what's changed git status Check in locally...
...git commit -m "good description" Push local commits to the server git push Get and merge updates from the server git pull Stage a file for the next local commit...
Starting Terminator with split screens is quite simple: Just store a layout and start Terminator with the --layout option. However, if you want to run custom commands in your terminals...
...command exits. You accomplish this by tweaking bash to run a command before actually starting. Pimp your .bashrc Add this to the end of .bashrc: # hack to keep a bash...
When you're using feature branches, they will stack up if you don't delete them after the merge to master. Here's how to tidy them up. Delete feature...
...Find already-merged branches by running # On branch master git branch --merged You may safely delete each of the listed branches, because they point to commits that are contained in...
A recent patch level Ruby update caused troubles to some of us as applications started to complain about incompatible gem versions. I'll try to explain how the faulty state...
...care of a few things: The new Ruby version is installed The Bundler version stated in the Gemfile.lock is installed Geordi is installed (for database dumps) The gems of the...
...t easily customizable. Example usage /slackfont Comic Neue to use "Comic Neue" (if installed) /slackfont system-ui to use your desktop's system font in Slack. /slackfont (without an argument...
...the default font. Some fonts may be unavailable If you installed Slack through Snap, only system-wide installed fonts (i.e. fonts located in /usr/share/fonts/ or /usr/local/share/fonts/) are available.
...multiple custom ways to format Dates or DateTimes. This often leads to duplicated format strings, wrong formats and unnecessary introduction of new formats. to_fs also supports to refer to...
...those formats by name e.g. to_formatted_s(:iso_8601) or to_formatted_s(:short). to_fs is an alias for to_formatted_s. Those names are defined in Time...
Sometimes we write plain SQL queries in migrations so we don't have to mock ActiveRecord classes. These two migrations do the same: class Migration1 < ActiveRecord::Migration[5.2]
...Migration2 < ActiveRecord::Migration[5.2] def up add_column :users, :trashed, :boolean update("UPDATE users SET trashed = #{quoted_false}") end end The plain SQL migration is less code, but has a...
When giving a presentation where you do some coding, the font size you usually use is probably a bit too small and makes code hard to read for users on...
...smaller screens or low-bandwidth connections when the image quality is lower. Here are two solutions. Presentation Mode RubyMine offers a "Presentation Mode" which you can use. Simply navigate to...
Plot graphs in Ruby WebGraphviz renders in your browser via JavaScript (to store the rendered graph, extract the SVG using your browser's DOM inspector) GraphViz with DOT: Online...
...graphviz.christine.website/ or offline https://makandracards.com/makandra/1589-auto-generate-state_machine-graphs-as-png-images Balsamiq Draw.io Excalidraw Asciiflow Google Presentation Egon.io: Domain storytelling with replay functionality (good to visualize and present flows) Gnuplot Ruby Bindings: Especially for more...
Git log offers useful options for filtering. This card provides a short overview. By message Only commits that include a specific string in their commit message git log --grep="tracker...
By file Only commits that introduced changes to a specific file git log -- foo.rb bar.rb Note In case the file was renamed or moved the --follow option can be...