pfrazee

Errmojis

Users have a hard time dealing with errors.

To solve that, put these emojis prominently in your error messages. Then when the user says:

I dont know what happened but I saw a christmas tree and then everything stopped working

You'll know it was an internal error!

prestonp

Super easy webm screencasts on OSX

Record your screencasts as movie files (.mov) using quicktime.

Build ffmpeg

1. Install yasm http://yasm.tortall.net/Download.html

wincent

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

jrf0110

var utils = require('./lib/utils');
var config = {};

/**
 * Change configuration environment
 * @param  {String} env The environment to change to
 */
var changeEnvironment = function(env){
  if (env == null || !config.hasOwnProperty(env)) env = 'dev';

jrf0110

<div class="columns flex-columns">
  <div class="col col-fixed">Hi</div>
  <div class="col col-flex">Mom</div>
</div>

brianc

$('.username').map(function() {
  var d = $(this).siblings('img').data();
  if(d && /[0-9_]/.test($(this).text())) {
    $.post('/i/user/block', {authenticity_token:'<PUT YOURS HERE>', user_id:d.userId});
    return $(this).text()
  }

});

pfrazee

It pains me to write this, because I prefer the more robust, function-composition-focused features of Javascript, but there's a threshold of performance where speed overrides elegance. After all, performance is half the reason that programming is skilled labor. So here we have it-- my list of performance benchmarks and advice.

The Unusable

Try / Catch -- Use conditionals instead

Try/Catch Performance may be pitting try/catch against an easy-to-optimize opponent, but it still makes a strong case.

Function Bind -- Use closure variables instead

brandonb927

#!/bin/sh

###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx

ry

for i in $HOME/local/*; do
  [ -d $i/bin ] && PATH="${i}/bin:${PATH}"
  [ -d $i/sbin ] && PATH="${i}/sbin:${PATH}"
  [ -d $i/include ] && CPATH="${i}/include:${CPATH}"
  [ -d $i/lib ] && LD_LIBRARY_PATH="${i}/lib:${LD_LIBRARY_PATH}"
  [ -d $i/lib ] && LD_RUN_PATH="${i}/lib:${LD_RUN_PATH}"
# uncomment the following if you use macintosh
#  [ -d $i/lib ] && DYLD_LIBRARY_PATH="${i}/lib:${DYLD_LIBRARY_PATH}"
  [ -d $i/lib/pkgconfig ] && PKG_CONFIG_PATH="${i}/lib/pkgconfig:${PKG_CONFIG_PATH}"
  [ -d $i/share/man ] && MANPATH="${i}/share/man:${MANPATH}"

jrf0110

/* This WAS a two-line function until an awesome reddit user pointed out my logical flaw. Now It's a 5-line function :( */

var Class = function(d){
  d.constructor.extend = function(def){
    for (var k in d) if (!def.hasOwnProperty(k)) def[k] = d[k];
    return Class(def);
  };
  return (d.constructor.prototype = d).constructor;
};