karlpokus

// http://stackoverflow.com/a/2117523/1983554
function createId() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'
    .replace(/[xy]/g, function(c) {
      var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
      return v.toString(16);
  });
}

karlpokus

function secretary(people, weekNumber){
  var index = weekNumber % people.length;
  return people[index]; 
}

karlpokus

#!/usr/bin/env node

// 1. add shebang above
// 2. make file executable
// $ chmod +x pipeToMe.js
// 3. pipe from file
// $ cat file | ./pipeToMe.js
// 4. pipe from echo
// $ echo -n one two | ./pipeToMe.js
// 5. just pass some args

karlpokus

testing core node modules with the REPL

The default evaluator will automatically load Node.js core modules into the REPL environment when used... https://nodejs.org/api/repl.html

$ node
> querystring.parse("")
{}

Easy peezy lemon sqeezy!

karlpokus

Proper error handling in node express

server

• Place errorHandler after all routes and before .listen
• Forget process.env.NODE_ENV
• Use knas when raising errors if you need to produce http status codes

function errorHandler(err, req, res, next) {
  // err is either obj or string

karlpokus

the cli

# Open 1+ files
$ vim file
$ vim -p [file|*|*.md] [file]
# Pipe to vim
$ echo foo | vim -

the editor

karlpokus

http://gsgd.co.uk/sandbox/jquery/easing/jquery.easing.1.3.js https://github.com/gdsmith/jquery.easing/blob/master/jquery.easing.js#L21

Relevant parts

// Preserve the original jQuery "swing" easing as "jswing"
$.easing['jswing'] = $.easing['swing'];

$.extend( $.easing,

karlpokus

Array.prototype.indexOff = function(x) {
  if (this.length === 0) {
    return -1
  }
  for (var i = 0; i < this.length; i++) {
    if (this[i] === x) {
      return i
    }
  }
  return -1

karlpokus

Remove item from list

<ul>
  <li v-for="(todo, index) in todos" v-on:click="remove(index)">
    {{ todo.text }}
  </li>
</ul>

var app = new Vue({

karlpokus

fast-cli

Meaures from fast.com

$ npm i -g fast-cli
$ fast [> file]

speed-test

Meaures from speedtest.net