lavalamp

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

1. Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

isaacs

# Hello, and welcome to makefile basics.
#
# You will learn why `make` is so great, and why, despite its "weird" syntax,
# it is actually a highly expressive, efficient, and powerful way to build
# programs.
#
# Once you're done here, go to
# http://www.gnu.org/software/make/manual/make.html
# to learn SOOOO much more.

wycats

HTMLBars serves as a polyfill for a native implement of node.bind.

Instead of letting the browser parse the HTML and generate nodes, which leaves us at the mercy of the limitations of the parser, HTMLBars implements an HTML parser and generates the nodes itself.

As HTMLBars generates the nodes, it calls into node.bind if it detects mustache syntax.

Open questions:

• MDV "syntaxes"

ryandotsmith

Tales From a Heroku User

Here are some things I have learned along the way.

Last Updated: 2013-02-08

Original Audience: Hack Reactor

About

wycats

// If you're using an off-the-shelf adapter:

DS.RESTAdapter.map('Links.List', {
  urls: { embedded: 'load' }
});

// Otherwise:

App.MyAdapter = DS.RESTAdapter.extend({
  // ...  

tomdale

Read-Only

An important feature for Ember Data is providing helpful error messages when your application tries to do something that is forbidden by the data model.

To that end, we would like for the data model to be able to mark certain records, attributes, and relationships as read-only. This ensures that we can provide errors immediately, and not have to wait for a return trip from the adapter.

This also means that the adapter does not need to handle the case where an application developer inadvertently makes changes to a record that it does not conceptually make sense to modify on the client.

Requirements

antramm

It All Starts With Templates

An Ember application starts with its main template. Put your header, footer, and any other decorative content in application.handlebars.

<header>
  <img src="masthead">
</header>

<footer>

wycats

Basic Strategy

Take a match block and add routes to a RouteRecognizer:

match("/posts").to("posts", function(match) {
  match("/").to("postIndex")
  match("/:id").to("showPost");
  match("/edit").to("editPost");

tomdale

WARNING

This gist is outdated! For the most up-to-date information, please see http://emberjs.com/guides/routing/!

It All Starts With Templates

An Ember application starts with its main template. Put your header, footer, and any other decorative content in application.handlebars.

<header>

seyhunak

$stack, $draws = [], {}

def method_missing *args
  return if args[0][/^to_/]
  $stack << args.map { |a| a or $stack.pop }
  $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end

class Array
  def +@