ryanto

import Ember from 'ember';

export default Ember.Component.extend({
  channelTalk: null,
  
  classNames: 'Channel-table-row',

  channel: Ember.computed.readOnly('channelTalk.channel'),
  talk: Ember.computed.readOnly('channelTalk.talk'),

steveklabnik

My summary of https://www.youtube.com/watch?v=IqrwPVtSHZI

TL;DR:

Rails has a library, ActiveSupport, which adds methods to Ruby core classes. One of those methods is String#blank?, which returns a boolean (sometimes I miss this convention in Rust, the ?) if the whole string is whitespace or not. It looks like this: https://github.com/rails/rails/blob/b3eac823006eb6a346f88793aabef28a6d4f928c/activesupport/lib/active_support/core_ext/object/blank.rb#L99-L117

It's pretty slow. So Discourse (which you may know from {users,internals}.rust-lang.org) uses the fast_blank gem, which provides this method via a C implementation instead. It looks like this: https://github.com/SamSaffron/fast_blank/blob/master/ext/fast_blank/fast_blank.c

For fun, Yehuda tried to re-write fast_blank in Rust. Which looks like this:

imjasonh

* {
    font-size: 12pt;
    font-family: monospace;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
    color: black;
    cursor: default;
}

edymerchk

# app/assets/javascripts/active_admin.js.coffee

#= require active_admin/base
ActiveAdmin = {
  dashboard: {},
  user: {}
}

ActiveAdmin.dashboard.index = () ->
  console.log 'Hello'

youssman

function camelCaseToDash( myStr ) {
    return myStr.replace( /([a-z])([A-Z])/g, '$1-$2' ).toLowerCase();
}

var myStr = camelCaseToDash( 'thisString' );
alert( myStr ); // => this-string

kristianmandrup

Converting libraries to Ember CLI addons

In this guide we will cover two main cases:

• Ember specific library
• vendor library

Ember library

The Ember library will assume that Ember has already ben loaded (higher in the loading order) and thus will assume it has access to the Ember API.

tnguyen14

When you modify a file in your repository, the change is initially unstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.

git reset changes, at minimum, where your current branch is pointing. The difference between --mixed and --soft is whether or not your index is also modified. So, if we're on branch master with this series of commits:

- A - B - C (master)

HEADpoints to C and the index matches C.

--soft

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

bendyorke

Some apps to install before moving forward:

Direct links included, if you trust me ;)

• Hookshot
  • https://hookshot.app
  • direct: https://hookshot.app/downloads/Hookshot1.18.dmg
• Adblock
  • https://getadblock.com
  • direct: https://data.getadblock.com/safari/AdBlock.safariextz

Install XCode from the App Store (this could take a while)

vjt

Welcome in many languages (in JSON format)

Today I wanted to implement a multi-language greeter for an application, and I ended up on http://www.omniglot.com/language/phrases/welcome.htm

I extracted all the welcomes from the page using jQuery, serialized them as JSON and processed them using Ruby:

welcomes = x.inject({}) {|h, (lang, val)| val.gsub!(/(.?)/, ''); vals = val.split(%r{\s+/\s+|\n}); vals.map! {|val| val.strip!; val.gsub!(/^\w+ -\s+|- \w+$|^lit.|>.+$/, ''); val.strip!; val}; vals.flatten!; vals.reject!(&:blank?);; h.update(lang => vals) }