Easy lexical replacement with Ruby's gsub method

gsub(pattern, hash) → new_str

In Ruby's String#gsub method, if the second argument is a Hash, and the matched text is one of its keys, the corresponding hash value is the replacement string.

ALTS = { "cat" => "man", "hat" => "mirror" }
"The cat in the hat".gsub(/.at/, ALTS)
=> "The man in the mirror"

See the Ruby docs for more.

 

How to install pg gem with Bundler when using Postgres.app 9.4

Rather than running the normal bundle install command, you'll need to specify the path to pg_config and then build the bundle:

bundle config build.pg --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config

 

Should I use an ORM?

Why ORM Divides Us

The argument is fundamentally about choosing what's in charge of your system, the system being composed of your databases, your applications, and your supporting infrastructure (your scripts, your migrations, etc.) ... Read the full article >

 

More of Uncle Bob's Clean Architecture

More of Uncle Bob's Clean Architecture, Foreign Gods in

Read Uncle's Bob's post on The Clean Architecture >

 

Weak Predictors in Artificial Intelligence

"...using many weak predictors will always be more accurate than using a few strong ones."

- Vladimir Vapnik

 

 

Most Recent

Archive

March 2016 (1)
January 2016 (1)
September 2015 (1)
May 2015 (1)
April 2015 (1)
March 2015 (1)
February 2015 (2)
January 2015 (5)
September 2014 (2)
August 2014 (4)
July 2014 (1)
March 2014 (1)
November 2013 (3)
September 2013 (3)
July 2013 (6)
June 2013 (1)
May 2013 (1)
March 2013 (2)
February 2013 (3)
January 2013 (4)