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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 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 --with-pg-config=/Applications/


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



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