neftaly

neftaly@nef-w10:~$ ssh [email protected] -p 2020
[email protected]'s password:
WhenItsReady

 ___________  ____________ _____   ___ _____ _   _______  ______ ___________
/  __ \  _  \ | ___ \ ___ \  _  | |_  |  ___| | / /_   _| | ___ \  ___|  _  \
| /  \/ | | | | |_/ / |_/ / | | |   | | |__ | |/ /  | |   | |_/ / |__ | | | |
| |   | | | | |  __/|    /| | | |   | |  __||    \  | |   |    /|  __|| | | |
| \__/\ |/ /  | |   | |\ \\ \_/ /\__/ / |___| |\  \ | |   | |\ \| |___| |/ /

neftaly

#include <FastLED.h>

#define DATA_PIN    5
#define LED_TYPE    WS2812
#define COLOR_ORDER GRB
#define NUM_LEDS    480
CRGB leds[NUM_LEDS];

int pos = 0;

neftaly

# i3 config file (v4)
#
# Please see https://i3wm.org/docs/userguide.html for a complete reference!

set $mod Mod4

# Font for window titles. Will also be used by the bar unless a different font
# is used in the bar {} block below.
font pango:monospace 8

neftaly

const R = require('ramda');

const typeEncoder = (mode, type) => {
  if (mode !== 'fromDynamo' && mode !== 'toDynamo') {
    throw new Error('Invalid mode: ' + mode);
  }
  const numberEncoder = mode === 'fromDynamo' ? Number : String;
  switch (R.toUpper(type)) {
    case 'S': return String;
    case 'N': return numberEncoder;

neftaly

// Split an array every time the predicate returns true
// :: f => (array -> Boolean) -> f a -> f a
const segment = R.curry((fn, array) => {
  const chunks = [];
  let chunk = [];
  for (let value of array) {
    if (fn(value)) {
      chunks.push(chunk);
      chunk = [];
    }

neftaly

import R from 'ramda';

/*
  Convert JS maps to/from DynamoDB maps.
  http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.LowLevelAPI.html#Programming.LowLevelAPI.ResponseFormat
*/

// Convert DynamoDB data to/from JS data
// :: => 'fromDynamo' => dynamoType => dynamoValue => jsValue
// :: => 'toDynamo'   => dynamoType => jsValue => dynamoValue

neftaly

const uuid = () => { // Create a secure V4 UUID
    const randomHexChars = qty => crypto
        .randomBytes(Math.ceil(qty / 2))
        .toString('hex')
        .slice(0, qty);
    const reserved = ['8', '9', 'a', 'b'][crypto.randomBytes(1)[0] % 4];
    return [
        randomHexChars(8),
        randomHexChars(4),
        '4' + randomHexChars(3),

neftaly

import R from "ramda";

const mapWhile = R.curry((
  predicate, // while fn - receives current partial list & value, returns bool
  transformation, // map fn
  list // source list
) => R.reduce((oldAcc, oldVal) => {
  const newVal = transformation(oldVal);
  const newAcc = [ ...oldAcc, newVal ];
  return predicate(newAcc, newVal) ? newAcc : R.reduced(oldAcc);

neftaly

import R from "ramda";

const stringize = value => typeof value === "number" ? value + "" : value;

const orphanIds = R.compose(
    R.reduce((partial, pair) => [
        ...partial,
        pair[0],
        ...orphanIds(pair[1].children)
    ], []),

neftaly

// inst: unix epoch
const hist = {
    "channel1": [
        { inst: 10000, id: "a" },
        { inst: 20000, id: "b" },
        { inst: 30000, id: "c" },
        { inst: 30000, id: "d" },
        { inst: 40000, id: "e" }
    ]
};