danmatthews

Discussion: Getting started with client-side applications.

Note: While my stack consists of Laravel (4/5) and AngularJS, i don't want this discussion to become a language or framework flame war, let's keep it respectable.

I would love the result of this to become an incredibly helpful blog post & guide.

Hi guys, i'm currently in the throes of (among other things), writing a client-side application to interact with an API (that i control). And there's a few things that confuse me, and i'd love to start an open discussion on the best patterns to use when building client side applications in order to achieve some of the following:

Securely authenticating users.

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

ceejbot

ESM modules in node: npm edition

The proposal you’re about to read is not just a proposal. We have a working implementation of almost everything we discussed here. We encourage you to checkout and build our branch: our fork, with the relevant branch selected. Building and using the implementation will give you a better understanding of what using it as a developer is like.

Our implementation ended up differing from the proposal on some minor points. As our last action item before making a PR, we’re writing documentation on what we did. While I loathe pointing to tests in lieu of documentation, they will be helpful until we complete writing docs: the unit tests.

This repo also contains a bundled version of npm that has a new command, asset. You can read the documentation for and goals of that comma

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

dduan

#!/usr/bin/env python
"""
Generate commit for each staged file, such that each commit is a `--fixup` to
the commit said file was last changed.

NOTE: this command will unstage all files. It also does not disninguish staged
      and unstaged potion of the same file.

USAGE: stage files you want to commit, run this command. Interactive rebase with
       autosquash: `git rebase -i --autosquash BASE`