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Jonathan Raphaelson lygaret

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lygaret / memo.ts
Created Nov 24, 2020
typescript dynamic memoization (rspec let)
View memo.ts
type MemoProps<T> = { [P in keyof T]: (this: T) => T[P] }
export const MemoProto = {
clone: function () {
return this.define({});
define: function define<T>(this: T & {}, props: MemoProps<T>): MemoState<T> {
// share the prototype, so we can nest but still destroy
const update = Object.create(this);
View gist:6379399a57e6f99bd9a9121d98ce6f3b

Hey Friendly @here,

Watching the uprisings across the country this week, and feeling a deep intertwined uncomfort at my own privilege and comfortable position, I am looking for ways to contribute that aren't simply idle cheerleading and amplification [1], and that reach further than simple bail fund donations [2].

[1]: which is perfectly fine, of course, but Twitter isn't action [2]: which, if you can, do:

One piece of advice I've seen handed around is that it's my job, as a relatively rich white person, as a person who is allowed to systemically ignore issues of justice in the world around me, to educate myself and those around me on "what's going on", and that I can't expect POC to do that work for me.

So, I'd like to invite whomever would like to join to read some books I've seen mentioned, starting with:

lygaret / clustering.rb
Created Jul 13, 2017
ruby module for kmeans clustering (1d)
View clustering.rb
# Methods for clustering data
module Clustering
# k-means clustering for 1d data
# pass a block to project from an element into a number
def self.kmeans_1d(data, k: 2, &projection)
return [data] if k == 1
if data.to_a.uniq(&projection).length < 2
return [data].concat((k - 1).times.collect { [] })
lygaret / PKGBUILD
Created Feb 21, 2017
PKGBUILD for installing npm2arch from @MazeChaZer's updated dependencies branch
pkgname=nodejs-npm2arch-updated-deps-git # All lowercase
pkgdesc="Convert NPM package to a PKGBUILD for ArchLinux, patched for recent dependencies."
depends=('nodejs' 'npm' )

Keybase proof

I hereby claim:

  • I am lygaret on github.
  • I am lygaret ( on keybase.
  • I have a public key ASCH_bCflDF9Q17IZVv7ox1t0p56et_SBdQSk5MQ-tFOYgo

To claim this, I am signing this object:

lygaret /
Last active Jul 8, 2016
Chrome Extension Helpers

dispatch helpers

createMessageDispatcher creates a message listener which will call a method on the handler argument, based on the contents of the message that's passed from elsewhere. It does this by injecting the (potentially error causing) method into a promise chain, by sticking it inside a custom thenable, which gives us much nicer error handling.


lygaret / octet_finder.rb
Last active Feb 19, 2016
find octets in a string with no periods
View octet_finder.rb
#!/bin/env ruby
def octet?(str)
(0...256) === str.to_i
def octets(str, current = [], output = [])
# bail if there's nothing left to get
if str.nil? || str.empty?
View csv_parser.rb
#!/bin/env ruby
STOP_QUOTED_RE = /(?:[^"]|"{2})(",)/
# returns [chunk, rest], rest is nil at the end
def read_chunk(line)
quoted = line[0] == '"'
start = quoted ? 1 : 0
View overtone-1.clj
(ns overtonetute.core
[:use []])
(use 'overtone.inst.drum)
(definst swave [freq 440 attack 0.001 sustain 0.4 release 0.1 vol 0.005]
(lpf (* (env-gen (env-lin attack sustain release) 1 1 0 1)
(sin-osc freq)