ZSH is an alternative command line shell that includes some features like spelling correction, cd automation, better theme, and plugin support. You can replace Bash with ZSH like following:
...apt-get install zsh Setting ZSH as default login shell sudo usermod -s /usr/bin/zsh $(whoami) Opening a new terminal window will show you a dialog where you can configure your...
In rare cases you might need something like form_for (for using form builder methods on the resulting block element) but without the surrounding form. One such case would be...
...updating some of a form's fields via XHR. You can simply use Rails' fields_for to do things like this in your views (HAML here): - fields_for @user do...
...duplication from the code is a seemingly easy task. In many cases it is pretty straight-forward – you look at similar bits of code and you move them to a...
...in other places. Right? No, not really. It is true that code that looks similar might be an indicator that there’s a duplication but it’s not the definitive...
...run by your web browser. As any JavaScript, you include a link to the script in your HTML, and…that’s that. LESS is now going to process LESS code...
Using ActiveRecord's #signed_id and .find_signed methods you can create URLs that expire after some time. No conditionals or additional database columns required...
...formatting. Headers, paragraphs, lists, it’s all good. What about the formatting of text in single-line text fields? If our form entry is a single line, that’s usually...
change_association :parent, class_name: 'Parent::AsForm', inverse_of: :children end When saving a Parent::AsForm record with nested Child::AsForm records, the children will not be saved...
...case where you override the association with has_many :children,...
...and belongs_to :parent, .... Solution This can be fixed with appending autosave: true to the Parent model: class Parent < ApplicationRecord...
...behavior of deprecated code in your Ruby project, the warning messages littered throughout your spec output is incredibly noisy. You could silence all warnings with ::ActiveSupport::Deprecation.silenced = true, but you...
...dependencies. It’s tempting to remove the tests altogether (the code will be burned soon too, right?), but I figured out something a little nicer a little while back in...
...frame('iframe-id') do fill_in 'E-mail', with: 'foo@bar.com' fill_in 'Password', with: 'secret' click_button 'Submit' end Instead of the frame's [id] attribute you may also pass...
If you're also using Cucumber you could make a meta-step like this: When /^(.*?) inside the (.*?) frame$/ do |step_text, frame_id| page.within_frame(frame_id...
...was missing some features on Ruby's RSS::Parser that I found in Feedjira: Speed Does not break on slightly malformed RSS feeds (like a missing length attribute on an...
S3cmd is a free command line tool and client for uploading, retrieving and managing data in Amazon S3. S3cmd reads its configuration by default from ~/.s3cfg, which is created once...
...you run s3cmd --configure. If you have many configurations, we recommend to always specify the configuration you want to use. This prevents applying actions to the wrong bucket. Examples:
When you're facing a somewhat complex Google Analytics setup and want to find out what's happening, you can use this Chrome extension. It's much simpler than other...
...like "Google Tag Assistant") and does just one job and does it well. To see what's happening, you need to open your developer console...
The team is responsible for building great software—that’s it. It’s the only thing the team is responsible for and it’s the only thing that they actually...
...control. In other words, the development team is committed to quality software...
...unknown, technique in Ruby. For certain types of problems (e.g. when you have a set of rules) this gives you such an elegant way of describing the solution. There’s...
...no meta programming or monkey patching involved, it’s short and sweet and best of all: it’s very intuitive...
Trample is a more flexible load simulator. Instead of a static list of urls, trample's configuration language is ruby. Using ruby's blocks (lambda functions), it's possible to...
The goal of modelling is to produce something substantially simpler than the world. This is achieved not through endlessly inventing new types and relationships -- in fact, it's just the...
...s by eliminating entities and restricting types that we get a model that's simpler than the world and thus useful...
When you need the DOM node of a tag (e.g. to read extra attributes, or to modify the DOM near it), you can usually reference it via document.currentScript. However, document.currentScript is unsupported in ancient browsers, like Internet Explorer 11 or wkhtmltopdf's Webkit engine. If you are not running async scripts, you can easily polyfill it: document.scripts[document.scripts.length - 1] It works because document.scripts grows with each tag that was evaluated. That is also the reason why this solution will not work reliably for async code. Demo: https://codepen.io/foobear/pen/poRLxQm
...format ("2021-02-22T20:34:53.686Z") Google API guideline: https://google.aip.dev/ Numbers: String vs. Number The JSON number type is not a double. It's just a number...
...parsed as whatever the parser finds fitting. Pagination: Limit + Offset vs. Object ID / Pointer vs. System-Version Tables Filter Attributes e.g. ?fields=f1,f2,f3 Version in path (/api/v1/) or...
...with more than one developer should always consider to enforce code review even for small changes to improves the overall code health of the system. Here are some guidelines that...
...perfect pull request Google Google's Engineering Practices documentation Modern Code Review: A Case Study at Google Thoughtbot Thoughtbot' Code Review Guideline
jQuery is still a useful and pragmatic library, but chances are increasingly that you’re not dependent on using it in your projects to accomplish basic tasks like selecting elements...
...styling them, animating them, and fetching data—things that jQuery was great at. With broad browser support of ES6 (over 96% at the time of writing), now is probably a...
...Invoked Function Expessions (or IIFEs) to prevent local variables from bleeding into an outside scope: (function() { var foo = "value"; // foo is scoped to this IIFE })(); In Coffeescript an IIFE looks...
(-> foo = "value" # foo is scoped to this IIFE )() There is also a shorthand syntax with do: do -> foo = "value" # foo is scoped to this IIFE
...model inherits from others or uses many concerns / traits, it might be hard to see in the code which validators it has. But fortunately there's a method for that...
...UniquenessValidator:0x00007f55f1417e88 @attributes=[:name], @klass=UserGroup (call 'UserGroup.connection' to establish a connection), @options={:case_sensitive=>true, :scope=>:partner_id}>, #<ActiveModel::Validations::NumericalityValidator:0x00007f55f1415200 @attributes=[:user_count_limit], @options={:greater_than...
...was typical approach for object oriented languages, designed in the 90s. A thread is sequence of instructions that can be scheduled and executed in the context of a process. Several...
...at the same time. Ruby’s VM process allocates a memory heap, which is shared and writable by threads. If incorrectly coordinated, those threads can lead to unexpected behaviors...
There are several gems that make it easy to read and process xlsx files. Parsing the entire file at once however is error-prone since each cell is transformed to...
...formatted but empty cells. As of today, I found two promising alternatives that provide a stream-based access to spradsheet rows: Roo supports multiple spreadsheet types like ODS or CSV...