mikeesto

Create a local WiFi hotspot with custom routing on the Raspberry Pi

This setup lets you:

• SSH into the Pi directly (e.g. ssh pi@raspberrypi)
• Access things running on the Pi (e.g. a web server)
• Set up fun domains that only exist within the local network, and can route to your services running on the Pi
• Prevents any access to the internet which can be useful if you are running the Pi as a tech demo, or for teaching etc

This is a modified/shorter version from the official Pi docs.

aribornstein

fetch("https://{namespace}.blob.core.windows.net/{containerName}/?restype=container&comp=list")
.then(response => response.text())
.then(str => new window.DOMParser().parseFromString(str, "text/xml"))
.then(xml => {
  let blobList = Array.from(xml.querySelectorAll("Url")); //.getAttribute("Url");
  blobList.forEach(async blobUrl => {
      console.log(blobUrl);
  });

eloytoro

function! NERDTreeFindUpdate()
  if exists("t:NERDTreeBufName") && bufwinnr(t:NERDTreeBufName) != -1 && expand("%:p") =~ getcwd() && !exists("b:fugitive_type")
    :NERDTreeFind
    exec "normal! \<c-w>p"
  endif
endfunction

augroup nerd
  autocmd!
  autocmd BufReadPost * call NERDTreeFindUpdate()

eloytoro

" ----------------------------------------------------------------------------
" Yank Position
" ----------------------------------------------------------------------------
function! s:YankPosition()
  let @+=@%.'#L'.line('.')
  let @r=@%
  echo 'copied "'.@+.'"'
endfunction
nnoremap <silent> yp :call <sid>YankPosition()<CR>

kentcdodds

// here's a handy trick:

/*

console.log('any code')

/**/


// It takes just one character change

threepointone

A series of posts on css-in-js

0. styles as objects

First, an exercise. Can we represent all of css with plain data? Let's try.

let redText = { color: 'red' };

moritzmhmk

Using Raspberry Pi Camera with ffmpeg

Capturing video from the rpi camera with ffmpeg can vary from less than 5% to 100% of the CPU (rpi zero) depending on ffmpeg using the hardware acceleration or not.

On many github issues one finds the suggestion of using h264_omx codec to use the gpu - but it does not ship with the default ffmpeg on Raspbian.

Instead I found that one can use the v4l2 driver provided by raspbian to get hardware accelerated h264 output. Also setting the video size will save one from using a (cpu) scale filter.

ffmpeg

capture h264 video from rpi camera

whitfin

client
  .refresh()
  .then(function () {
    return client.get(); // return your promise
  })
  .then(function (result) {
    // result is the return of client.get()
  })
  .catch(function (err) {
    // common handler for any broken promise now

indrayam

Pseudocode:

Y = Base64URLEncode(Header) + ‘.’ + Base64URLEncode(Payload)
JWT = Y + ‘.’ + Base64URLEncode(HMACSHA256(Y))

The steps called out here should work on a Mac as well. The only thing that might be different is the sed command used below. Instead of using -E, you will have to use -r to run sed with extended regular expression support

Use data from this tutorial:

scotch.io

nucleartide

function explicit(ctx, fn) {
  return function() {
    try {
      const result = fn.apply(ctx, arguments)
      return [null, result]
    } catch (err) {
      return [err, null]
    }
  }