The way that Javascript schedules timeouts and promise callbacks is more complicated than you think. This can be the reason...
Have you ever mistaken one Rails environment for another? The attached helper will help you to never do it again...
When you are working with jQuery selectors and collections, many times you want to know if the collection actually contains...
to create a Gallery that has a name and has_many :images, which in turn have a...
UI sortable helps reordering items with drag 'n drop. It works quite fine. Proven configuration for sorting table rows
jQuery's find looks in the element's descendants. It will never return the current element itself, even if the...
Sometimes you want to preload images that you will be using later. E.g. if hovering over a an area changes...
TL;DR If you want to support most browsers, then don't exceed 50 cookies per domain, and don't...
Spreewald gives you the within meta step that will constrain page inspection to a given scope. Unfortunately, this does not...
Many of our developers love to use the "awesome" window manager on Linux. However, RubyMine dialogs occasionally defocus while typing...
When you have a localized website, you may want to redirect users to their preferred language when they visit the...
ActiveRecord offers an explain method similar to using EXPLAIN SQL statements on the database. However, this approach will explain all...
When building a form with a file select field, you may want to offer your users a live preview before...
Tool to show you which gems are slow to load: ➜ git:(master) ✗ bundle exec bumbler [################################################# ] (49/65) travis-lint...
Awesome is a very good tiling window manager that provides neat features like automatic layouting of windows, good multi-display...
You can use JavaScript to get or set cookie values on the client. Using the vanilla JavaScript API
Flexbox is great, but you don't get reliable support in Internet Explorer. The attached article shows how to accomplish...
This card existed before, but was outdated due to browser implementation changes. The information below is validated for the current...
Current webkit browsers like Chrome and Safari have a special variable in their consoles that refers to the selected DOM...
The attached Coffeescript helper will let you create mouse events: $element = $('div') Trigger.mouseover($element) Trigger.mouseenter($element) Trigger.mousedown($element) Trigger.mouseup($element...
Enter any command into explainshell and it will explain it to you: split into separate commands (if present), with each...
To upload a file via AJAX (e.g. from an ) you need to wrap your params in a FormData object.
Angular's location provider stalls links to the current URL, i.e. window.location. As soon as the $location service is activated...
RSpec provides a nice diff when certain matchers fail. Here is an example where this diff is helpful while comparing...