Christian Rolle
German version
twitter
githuboctocat
linkedin
Blog
Google blog
Feb 18, 2018
Descriptive boolean arguments
Ruby
Boolean
Feb 11, 2017
Tainted - Ruby security
Ruby
Security
Jan 22, 2017
Struct vs. OpenStruct benchmark
Ruby
Struct
Benchmark
Jan 8, 2017
Struct vs. OpenStruct definition
Ruby
Struct
OpenStruct
Dec 4, 2016
The raise and fail of exceptions
Exception
Pattern
Ruby
Nov 6, 2016
Dependency Injection pattern
Ruby
Pattern
Depency Injection
Oct 30, 2016
YAML list
YAML
Ruby
ActionView
Oct 22, 2016
Array coherences
Ruby
Equality
Basics
Oct 16, 2016
Environment variables
Ruby
Gems
Tooling
Oct 1, 2016
Arranging test environment
Ruby
Testing
Factory Girl
Sep 18, 2016
Accurate floating decimals
Ruby
Basics
Sep 11, 2016
Testing: Arrange, Act, Assert
Ruby
RSpec
Pattern
Sep 4, 2016
Dangerous prima donna methods
Ruby
Style guide
Aug 28, 2016
Dealing with durations
Ruby
ActiveRecord
Range
Aug 14, 2016
Flexible matcher class
Ruby
RSpec
Matcher
Jul 17, 2016
Positive coding style
Ruby
Style guide
Jul 3, 2016
Classes are objects
Ruby
Basics
Jun 19, 2016
Private classes in Ruby
Ruby
Basics
Jun 12, 2016
The Factory Pattern
Ruby
Factory
Pattern
May 29, 2016
Private constants in Ruby
Ruby
Basics
May 22, 2016
ActiveRecord equality - explained
Ruby
ActiveRecord
Equality
May 15, 2016
Benchmark vs. question mark
Ruby
Refactoring
Tooling
May 8, 2016
Equal? is not eql?
Ruby
Basics
Equality
May 1, 2016
Refactoring: Query Method
Ruby
Refactoring
Query Method
Apr 16, 2016
Replacing Magic Numbers
Ruby
Refactoring
Magic Numbers
Apr 3, 2016
The Guard Clause Pattern
Ruby
Guard Clause
Pattern
Mar 27, 2016
Testing modules with RSpec
Ruby
RSpec
Module
Feb 7, 2016
The Delegator pattern
Ruby
Delegator
Pattern
Jan 24, 2016
The Threequal operator
Ruby
Jan 17, 2016
The Decorator pattern
Ruby
Decorator
Pattern
Jan 10, 2016
Interpolated shell command
Ruby
Oct 25, 2015
Exception handling without verbosity
Ruby
Exception
Oct 18, 2015
Exploding enumerables with the splat operator
Ruby
Oct 8, 2015
Iterator block shortcut
Ruby
Oct 3, 2015
Hash values identified by non Strings/ Symbols
Ruby
Ruby on Rails
Aug 15, 2015
Ruby percentage notations
Ruby
Jul 18, 2015
Iterators: inject and reduce
Ruby
Ruby on Rails
Jun 20, 2015
Concise Ruby messages
Ruby
Style guide
Feb 7, 2015
Interpolated regular expression
Ruby
Jan 31, 2015
String interpolation
Ruby
Jan 24, 2015
String/ Symbol Array interpolation
Ruby