yvele

// Inspired from:
// https://ben.akrin.com/driving-a-28byj-48-stepper-motor-uln2003-driver-with-a-raspberry-pi/
// https://gist.github.com/wolli2710/9ae48c9f39737896c1f6
const { Gpio } = require("onoff");

const in1ToGpio = 17; // IN1
const in2ToGpio = 18; // IN2
const in3ToGpio = 27; // IN3
const in4ToGpio = 22; // IN4
const timeout = 1; // milliseconds

yvele

/**
 * Serialize a POJO while preserving `undefined` values.
 */
function serializePOJO(value, undefinedPlaceholder = "[undefined]") {
  const replacer = (key, value) => (value === undefined ? undefinedPlaceholder : value);
  return JSON.stringify(value, replacer);
}

/**
 * Deserialize a POJO while preserving `undefined` values.

yvele

import SVGO from "svgo";
import deasync from "deasync";

function svgoOptimizeSync(svgo, content) {
  let res;
  svgo.optimize(content, result => res = result);
  deasync.loopWhile(() => !res);
  return res;
}

yvele

var Rx = require('rx');
var readline = require('readline');
var fs = require('fs');

var rl = readline.createInterface({
  input: fs.createReadStream('lines.txt')
});

var lines = Rx.Observable.fromEvent(rl, 'line')
  .takeUntil(Rx.Observable.fromEvent(rl, 'close'))

yvele

sudo fsck_exfat -d disk0sXXX
diskutil repairvolume /Volumes/XXX/

yvele

# Version key/value should be on his own line
PACKAGE_VERSION=$(cat package.json \
  | grep version \
  | head -1 \
  | awk -F: '{ print $2 }' \
  | sed 's/[",]//g' \
  | tr -d '[[:space:]]')

echo $PACKAGE_VERSION