shanewholloway

// See https://web.dev/text-fragments/
// location.hash = searchFragment('text to find in page')

export const searchFragment = txt => `#:~:text=${encodeURI(txt)}`

shanewholloway

/* from Kevin Powell's [3 useful CSS tricks](https://www.youtube.com/watch?v=HOM47v73yG8)
 * for <div class=box></div>
 * useful for iframes, videos, pictures, etc.
 */

.box {
  width: 25rem;
  aspect-ratio: 1 / 1;
  position: fixed;
  inset: 0rem; /* sets top/bottom/left/right to same value */

shanewholloway

import {networkInterfaces} from 'os'
import {isIP, BlockList} from 'net'

export function * iter_subnet_matches(ip_query) {
  let family = isIP(ip_query)
  let ipv = 'ipv'+family

  for (let [if_name, if_addrs] of Object.entries(networkInterfaces())) {
    for (let each of if_addrs) {
      if (family != each.family)

shanewholloway

async function blobAsDataURL(blob) {
  let rdr = new FileReader()
  await new Promise((onload, onerror) => {
    rdr.onload = onload
    rdr.onerror = onerror
    rdr.readAsDataURL(blob) })
  return rdr.result
}

shanewholloway

export function parse_html(raw_html_string) {
  return new DOMParser()
    .parseFromString(raw_html_string, 'text/html') }

export function dom_to_html_blob(dom) {
  let html_doc = new XMLSerializer()
    .serializeToString(dom)
  return new Blob([html_doc], {type: 'text/html'}) }

export function dom_to_html_blob_url(dom) {

shanewholloway

class CBORDecoderBase {
  // Possible monkeypatch apis responsibilities:
  //   decode() ::
  //   *iter_decode() ::
  //   async decode_stream() ::
  //   async * aiter_decode_stream() ::

  static options(options) {
    return (class extends this {})
      .compile(options)}

shanewholloway

SHTC3 and RaspberryPI over Qwiic

Parts:

• SparkFun Humidity Sensor Breakout - SHTC3 (Qwiic)
• SparkFun Qwiic pHAT v2.0 for Raspberry Pi
• Raspberry Pi 3 B+

Reference Material:

• SHTC3_Datasheet
• smbus2 Python library

shanewholloway

class Awesome {
  fn = ns => (console.log('instance function', this), this)
  static s_fn = ns => (console.log('static function', this), this)

  val = (ns => (console.log('instance iife', this), this))()
  static s_val = (ns => (console.log('static iife', this), this))()
}

console.log('Awesome.s_val', Awesome.s_val === Awesome, Awesome.s_val)
// true

shanewholloway

const worker_src = `
console.log("Worker from a Blob URL:", typeof self)
`

const blob_worker = new Blob([worker_src], {type: 'application/javascript'})

const bloburl_worker = URL.createObjectURL(blob_worker)
console.log({bloburl_worker})

const wkr = new Worker(bloburl_worker, {type: 'module'})

shanewholloway

#!/bin/sh

# Seems to only support RSA keys...

ykman piv export-certificate 9a public-cert.pem

openssl x509 -in public-cert.pem -noout -pubkey > public-key.pem

ssh-keygen -i -m pkcs8 -f ./public-key.pem > id_yubi_9a.pub