nepsilon

Email address syntax validation? Let the browser do it (without regexp)

Here is a simple and robust way to check for the validity of an email address syntax directly in the browser. No need for crazy regular expressions.

e = document.createElement('input')
e.type = 'email'
// check some email addresses
e.value = 'hi@'

joepie91

By the way, I'm available for tutoring and code review :)

Table of contents

1. What Promises library should I use?
2. How do I create a Promise myself?
3. How do I use new Promise?
4. How do I resolve a Promise?
5. But what if I want to resolve a synchronous result or error?
6. [But what if it's at the start of a chain, and I'm not in a .then callback yet?](https://gist.github.com/joepie91/4c3a10629a4263a522e3bc4839a28c83#6-but

nepsilon

A better setup for Git

Git default configuration is good but it can be personalized to improve your workflow efficiency. Here are some good lines to put in your ~/.gitconfig:

# The basics, who you commit as:
[user]
  name = John Doe
  email = john@doe.org

addisonamiri

This is a response to this reddit post.

You're in luck because I'm less than sober and love helping people switch to The Great People's Operating System. There are a few things that are a bit weird coming out the gate that took me a while to realize so I'm going to try and explain the freedom you have when switching from closed source operating systems.

0. HAVE FUN

If you're not having fun as a CS major running Linux you're doing it wrong. You can put as much or as little effort into the OS and really you'll learn stuff about how your software works that you never though you would. I love this shit. It's why I cringe when I use anything else. It's a drug. If something is really bothering you ask around and there's usually a solution. If not there's a compromise. If not there's bug reports and contacting d

daniellevass

<?xml version="1.0" encoding="utf-8"?>
<resources>

<!-- google's material design colours from 
http://www.google.com/design/spec/style/color.html#color-ui-color-palette -->

    <!--reds-->
    <color name="md_red_50">#FFEBEE</color>
    <color name="md_red_100">#FFCDD2</color>
    <color name="md_red_200">#EF9A9A</color>

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

pinceladasdaweb

var Youtube = (function () {
    'use strict';

    var video, results;

    var getThumb = function (url, size) {
        if (url === null) {
            return '';
        }
        size    = (size === null) ? 'big' : size;

domenic

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs