Haml 3.1.2 displays single quotes in FormBuilder#text_ field html escaped. You may see something like that: David's Chapter Looking at the page's HTML, your field's...
...message like this, rubygems.org might have issues with their ipv6 connectivity: $ bundle install Fetching source index from https://rubygems.org/ Retrying fetcher due to error (2/4): Bundler::HTTPError Could not fetch...
...specs from https://rubygems.org/ due to underlying error <timed out (https://rubygems.org/specs.4.8.gz)> The (a little bit dirty) possible solution If that's actually the case, then you can try...
Capistrano 2 brings the shell command which allows you to run commands on your deployment targets. There is also invoke to run a command directly from your terminal.
...allow running Capistrano tasks or shell commands, and scope to individual machines or machine roles. Unfortunately Capistrano 3 does not include these commands any more. cap shell Basics
When using Sidekiq in your application, you must write thread-safe code. This wiki page also lists gems that are known to be unsafe on threaded applications.
...gem that will also be used by a Sidekiq worker, make sure to confirm it's thread-safe...
jQuery doesn't store information about event listeners and data values with the element itself. This information is instead stored in a global, internal jQuery cache object. Every time you...
...gets deleted is when you call remove() on the element that put it there! Since cache entries also have a pointer back to the element that spawned them, it is...
...Use Before and After to avoid that. Details Consider this Cucumber feature file: Feature: Something that needs to be tested Background: Given a user And I sign in Scenario: Sign...
When I sign out Then I should see "Signed out" Scenario: Something else # ... Now, assume you have these step definitions: Around do puts "** Around: before yield" yield puts "** Around...
...to those fields that is case-insensitive. The model looked like this: create_table :shop_locations do |t| t.string :street t.string :house_number t.string :zip_code t.string :city t.belongs_to...
end But how to solve the uniqueness problem? Another day, another undocumented Rails feature! This time, it’s that ActiveRecord::Base.connection.add_index supports an undocumented option to pass a...
...all the world to admire. For private gems this is very bad. To make sure this cannot happen, rubygems 2.2+ allows you to restrict eligible push hosts: Gem::Specification.new 'my...
...gem', '1.0' do |s| # ... s.metadata['allowed_push_host'] = 'https://gems.my-company.example' end In case you already messed up, follow these instructions to get your gem removed. Of course, it's not...
...Linux and MacOS, they look horrible on Windows, a problem that gets worse with smaller font sizes. The culprit is something called font hinting: ... hinting is about... programming instructions that...
...hinting, causing horrible rendering for most fonts. Embedding autohinting information into font files A solution is to autohint fonts and replace the existing (bad) hinting with the autohinting information.
You may want this for things where Rationals are being used, like when subtracting Date objects from one another. What's happening? Converting a Rational to a String usually...
...does something like this: 1.8.7 > Rational(2, 3).to_s => "2/3" 1.9.3 > Rational(2, 3).to_s => "2/3" 2.0.0 > Rational(2, 3).to_s => "2/3" However, when you have a...
...Content-Type on GET request (which have a blank body), an external API may still force you to send one. Angular's $http service will strip that header when the...
...is blank. [1] This is possibly a misconception of RFC2616. Here is how to send GET requests with a Content-Type header in Angular. Example Consider this request: $http({ method...
A fantastic guide for a dilemma facing any web-based product. Here’s a simple set of Yes/No questions that you can quickly answer before you add another item to...
...your product roadmap. Saying yes to a feature request – whether it’s a to an existing customer, a product enquiry, a teammate, or a manager – is immediately rewarding. It’s...
Soon after having written our shell-for script, we wanted to easily get dumps of our productions machines, too. This is how we do it: dump-for staging [-s]
...dump to your project's tmp directory and name it according to the capistrano stage you're calling for, here: staging.dump. When you pass the optional -s option, the dump...
...an array, neither JavaScript/ES6+ nor libraries like LoDash offet that natively. Here is a simple function instead that modifies the input array in place. function moveArrayElement(array, element, offset) {
...It was what I needed, but you could easily adjust that. Check the linked StackOverflow post for more information and other implementations...
You can use JavaScript to get or set cookie values on the client. Using the vanilla JavaScript API In JavaScript, document.cookie is an accessor to all cookies on the current...
...site. It looks like a String, but its setter is actually more powerful. When setting cookies this way, remember to set the path=/ option. Reading cookies A result may look...
...Basic.encode_credentials for that, and put its result into the Authorization request header. Request specs For request specs, use the :header option. it 'requires authentication' do get '/' expect(response.status).to...
...username, password) get '/', header: { Authorization: encoded_credentials } expect(response.status).to eq(200) end Controller specs In controller specs, you can put then into request.env['Authorization']. it 'requires authentication' do
What are Google’s plans for turning WebM into a genuinely open standard, one that is based on consensus like the rest of W3C’s HTML5 effort? Would Google fully...
...support such an effort? Even the WebM project’s domain is controlled by Google. Google chose to release WebM under the Creative Commons license which would theoretically allow a standards...
...Railses. Consul now uses Memoizer for this. Temporarily change the current power When you set Power.current to a power in an RSpec example, you must remember to nilify it afterwards...
...Otherwise other examples will see your global changes. A better way is to use the .with_power method to change the current power for the duration of a block:
Suppose you want to implement a publish/subscribe pattern in your Frontend application to react to data changes and events. First, you might be looking for an event emitter library.
We used zeroclipboard.js in some of our projects but now we switched to clipboard.js because it does not rely on flash. Flash support of the major browsers has ended.
...more advantages of clipboard.js: it consists only of a single javascript file, so it does not trigger additional requests with rails it automagically provides user feedback by selecting the text...
The Interactive Advertising Bureau (IAB) is a European marketing association which has introduced a standard how advertising can be served to users in line with the General Data Protection Regulation...
...GDPR). This standard is called the TCF 2.0 (Transparency and Consent Framework). If you want to integrate any kind of advertising into a website, chances are the advertising network will...
...extremely popular amongst front-end developers the last couple of years. This isn’t surprising, as it has made it a lot easier for us to create dynamic layouts and...
UI sortable helps reordering items with drag 'n drop. It works quite fine. Proven configuration for sorting table rows When invoking the plugin, you may pass several options. This set...
...causing the thead border-bottom to grow // when the first table row is dragged tr.ui-sortable-helper:first-child + tr > td border-top: none
jQuery offers many different methods to move a selection through the DOM tree. These are the most important: $element.find(selector) Get the descendants of each element in the current set...
...of matched elements, filtered by a selector. Does not find the current element, even it matches. If you wanted to do that, you need to write $element.find(selector).addBack(selector...