tl;dr Since Rails 7+ you can use ComparisonValidator for validations like greater_than, less_than, etc. on dates, numerics...
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
Ncdu is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote...
You can use ETags to allow clients to use cached responses, if your application would send the same contents as...
One rule of thumb I try to follow in capybara tests is using capybara matchers and not plain rspec matchers...
tl;dr git checkout is the swiss army of git commands. If you prefer a semantically more meaningful command for...
New versions of wkhtmltopdf dissallow file:// URLs by default. You can allow them by passing --enable-local-file-access.
You have uncommited changes (you can always check by using git status), which you want to discard.
tl;dr In RubyMine you can use find and replace with capture groups (.*?) and backreferences $1 (if you have several...
The robots.txt file and HTML tag can be used to control the behavior of search engine crawlers. Both have different...
Ruby's standard library includes a class for creating temporary directories. Similar to Tempfile it creates a unique directory name...
tl;dr Since Rails 6+ you can use before? and after? to check if a date/time is before or after...
Case studies and experiments demonstrating the impact of web performance optimization (WPO) on user experience and business metrics.
To allow HTTP 304 responses, Rails offers the fresh_when method for controllers. The most common way is to pass...
A memory leak is an unintentional, uncontrolled, and unending increase in memory usage. No matter how small, eventually, a leak...
For Rails models where only one of multiple attributes may be filled out at the same time, there is no...
When you build a JSON API you need to come up with a style to represent attributes, pagination, errors or...
If you need to convert an SVG source to PS or EPS, the most common suggestion on the interwebs is...
Resolve @{-1} to actual branch name. (Happens when merging "-".)
Greg Molnar has written a neat article about creating a single-file Rails app. This is not meant for production...
Working with a self-signed certificate is much easier, when the browser accepts it. Google Chrome Warnings from chrome might...
When working with feature branches, stale branches pile up over time. It's best to remove them right after merge...
Sometimes the need arises for SSL in local development. We have guides for different webservers, this one is for puma...
Note Use yarn dedupe in Yarn v2+: https://yarnpkg.com/cli/dedupe This package only works with Yarn v1. Yarn v2 supports...