To print a colored full-width bar on the bash, use this bash script expression: echo -e '\033[37;44m...
rake stats # => LOC per controllers, models, helpers; code ratios, and more rake notes # => collects TODO, FIXME and...
String#indent is not a standard Ruby method. When you use it, be sure to know where this method comes...
You might have a table without a primary key set in MySQL. You can fix this by adding a primary...
Wondering how a specific method on an object is exactly named? You can use Enumerable#grep to detect it in...
For reasons that completely escape me, MySQL 5.x limits UTF-8 strings to U+FFFF and smaller.
Tests are about 100% control over UI interaction and your test scenario. Randomness will eventually cause flaky tests that are...
I had to deal with JavaScript Undefined Error while accessing a specific CKEditor instance to fill in text. Ensure everything...
Arel is a library that was introduced in Rails 3 for use in constructing SQL queries. Every time you pass...
class Book::Page end class MyBook < Book def new_page Page.new # has to be `Book::Page` in development to...
Ask before leaving an unsaved CKEditor Vanilla JavaScript way, but removes any other onbeforeunload handlers: $(function(){ document.body.onbeforeunload = function() { for(editorName...
When you are working with Backbone models and inheritance, at some point you want to overwrite inherited methods but call...
Sometimes you have a test expectation but actually want a better error message in case of a failure. Here is...
Sometimes you want to strip a text of every special char. If you use \W, the result might not be...
Warning: Because of (unclear) rounding issues and missing decimal places (see examples below), do NOT use this when dealing with...
If you want to switch to another ruby versions, you have several options, depending on what you want: Do you...
Publish/subscribe for Ruby classes. Bonus: You do not have to declare events before using them.
I had a huge MySQL dump that took forever (as in: days) to import, while I actually just wanted to...
There seems to be no way to use therubyracer -v '0.11.4' and libv8 -v '3.11.8.17' on OS X Mavericks.
Rbenv won't compile REE 2011.03 properly on Ubuntu 12.04, failing with an error in tcmalloc.cc. If you want to...
We have released Modularity 2. It has many incompatible changes. See below for a script to migrate your applications automatically...
Give the table a style table-layout: fixed Give the cells in the first row a width The same width...
Opal is a source to source ruby to javascript compiler, corelib and a runtime implementation that currently passes 3000 rubyspecs...