Skip to content

Instantly share code, notes, and snippets.

📝
Documenting things

Brandon Weaver baweaver

📝
Documenting things
Block or report user

Report or block baweaver

Hide content and notifications from this user.

Learn more about blocking users

Contact Support about this user’s behavior.

Learn more about reporting abuse

Report abuse
View GitHub Profile
@baweaver
baweaver / symbol_ap.rb
Created Oct 19, 2019
Stealing some vague ideas from Applicatives in Haskell, probably wrongly but it amuses me so...
View symbol_ap.rb
class Symbol
def ap(*applied_args)
-> *block_args {
if applied_args.empty?
receiver, *new_args = block_args[0]
receiver.send(self, *new_args)
else
self.to_proc.call(*block_args, *applied_args)
end
}
@baweaver
baweaver / favorite_things_ruby_edition
Last active Sep 21, 2019
A Few of my Favorite Things translated to Ruby (WIP)
View favorite_things_ruby_edition
Ruby programming
And Gems pushed to GitHub
Cloud based deployments and CI / CD
Tests that will pass on the first try
These are a few of my favorite things
Just Rails new app name
and omakase thinking
convention o'er configuration
and sane default settings
View hash_set_extension.rb
class Hash
alias_method :+, :merge
def -(other)
other_keys = Set.new(other.keys)
# Irrelevant value method
# reject { |k, _v| other_keys.include?(k) }
# Relevant value method
View proposed_pipeline.rb
def double(n) n * 2 end
increment = -> n { n + 1 }
5
|> double # Method
|> increment # Proc
|> to_s(2) # self.to_s
View tales_of_the_ruby_grimoire.md

Tales of the Ruby Grimoire

Introduction

The council of 3.0 had been called, and Scarlet was readying to join them to discuss the future of the land of Ruby. With her was her student, Red, carrying out his latest lesson.

"Now be sure to finish the remaining problems by the time I return, Red. I expect I'll have many fun things to tell you of when I return." said Scarlet.

Red nodded, still writing away on his scrolls, but as Scarlet exited the castle a sly sort of grin grew on his face.

View contramap.rb
class Proc
def contramap(&fn) self << fn end
end
adds = -> a, b { a + b }.curry
[1, 2, 3].map(&adds[2])
# => [3, 4, 5]
# What if the type on the left doesn't work with `adds`?
@baweaver
baweaver / async_helpers.js
Created Apr 12, 2019
Helpers for working with ActionCable async on the client side
View async_helpers.js
// Helpers
const MAX_WAIT = 10000;
const POLLING_RATE = 500;
export function timedOut (maxWait) {
const startTime = Date.now();
return () => Date.now() - startTime > maxWait;
}
@baweaver
baweaver / tracepoint_notes_raw.md
Created Jan 26, 2019
Raw notes from my TracePoint session
View tracepoint_notes_raw.md

TracePoint

What is TracePoint?

A class that provides the functionality of Kernel#set_trace_func in a nice Object-Oriented API.

Well what is set_trace_func?

Establishes proc as the handler for tracing, or disables tracing if the parameter is nil.

View tutor_subjects.rb
user_id_tp = tutor_profiles.index_by(&:user_id)
tutor_subjects = TutorSubject
.where(tutor_id: user_id_tp.keys)
.group_by(&:tutor_id)
.to_h { |uid, subjects| [user_id_tp[uid], subjects.map(&:subject_id)] }
# Faster
user_id_tp = tutor_profiles.index_by(&:user_id)
hash_of_arrays = Hash.new { |h,k| [] }
@baweaver
baweaver / pre_2019_article_difficulty.md
Last active Jan 28, 2019
Pre 2019 article difficulty rankings for some of my writings
View pre_2019_article_difficulty.md

Pre 2019 Articles by Difficulty Ranking

Posts are referenced doubly by difficulty then by chronological release order. Articles with a (+x) notation contain an advanced section that is not necessary reading, but dives into more advanced subject matter as a post-article exploration.

Beginner

Requires no prerequisite knowledge. Frequently these articles are not directly programming related, and address other topical areas.

This ranking is more likely to grow in 2019, but in the mean time I would suggest reading the content that Mehdi has been writing over the past few years.

You can’t perform that action at this time.