Andarist

// source
524288; // {"basics":["Object"],"composites":["StructuredType","StructuredOrInstantiable","ObjectFlagsType","Narrowable","NotPrimitiveUnion","IncludesMask"]}
// target
8388608; // {"basics":["IndexedAccess"],"composites":["TypeVariable","InstantiableNonPrimitive","Instantiable","StructuredOrInstantiable","Simplifiable","Narrowable","NotPrimitiveUnion","IncludesWildcard"]}

var flags = {
  Any: 1 << 0,
  Unknown: 1 << 1,
  String: 1 << 2,
  Number: 1 << 3,

threepointone

Note: Since writing this, I've been pointed to some exciting new research/tooling called Project Cambria https://www.inkandswitch.com/cambria.html I'll likely have to rewrite this article taking that into account. Leaving this up for posterity's sake.

---

(This series isn't meant to be a primer/tutorial, though we might do something regarding it in the future. For official documentation and starters, see https://developers.cloudflare.com/workers/learning/using-durable-objects.

Further - these are my personal views; I expect to be wrong about a lot of them. Indeed, I'm not paying much attention to presenting these well at the moment, simply writing down thoughts. As such, expect these writeups to change often, particularly as the platform takes shape. I'm also mostly a front end guy, so don't get mad if I get it very wrong. Give me feedback! Always happy to learn and make changes.)

Durable Objects are a fascinating new storage primitive from cloudflare for their workers platform. There's a lot of 'cool'

yegappan

Vim Script for Python Developers

This is a guide to Vim Script development for Python developers. Sample code for the various expressions, statements, functions and programming constructs is shown in both Python and Vim Script. This is not intended to be a tutorial for developing Vim scripts. It is assumed that the reader is familiar with Python programming.

For an introduction to Vim Script development, refer to usr_41.txt, eval.txt and Learn Vimscript the Hard Way

For a guide similar to this one for JavaScript developers, refer to Vim Script for the JavaScripter

This guide only describes the programming constructs that are present in both Python and Vim. The constructs that are unique to Vim (e.g. autocommands, [key-mapping](https://vimhelp.org/map.txt.html#key-m

jakub-g

<script> async, defer, async defer, module, nomodule, src, inline - the cheat sheet

With the addition of ES modules, there's now no fewer than 24 ways to load your JS code: (inline|not inline) x (defer|no defer) x (async|no async) x (type=text/javascript | type=module | nomodule) -- and each of them is subtly different.

This document is a comparison of various ways the <script> tags in HTML are processed depending on the attributes set.

If you ever wondered when to use inline <script async type="module"> and when <script nomodule defer src="...">, you're in the good place!

Note that this article is about <script>s inserted in the HTML; the behavior of <script>s inserted at runtime is slightly different - see Deep dive into the murky waters of script loading by Jake Archibald (2013)

soaxelbrooke

Postgrest doesn't like you executing arbitrary queries, but you can get around it by defining a function that executes the query for you:

$ psql mydb
mydb=# create function custom_query(query text) returns setof json as $f$
    begin 
    return query execute format('with tmp as (%s) select row_to_json(tmp.*) from tmp;', query); 
    end
 $f$ language plpgsql;

alexpana

Various 'features' of C++ that show the hacky / inconsistent way in which the language was constructed. This is a work in progress, and currently contains some of the reasons I can remember why I've given up on C++. If you want to contribute, leave your favourite "hack" in the comments.

1. (in)Visibility: C++ allows changing the access modifier of a virtual function in the derived class. Not only does C++ have no notion of interfaces, it actually allows subclasses to hide methods declared public in the superclass.

2. Operator over-overloading: One of the increment operators takes a dummy int parameter in order to allow overloading. Can you tell which without googling? (hint: its postfix).

3. Exception unspecifiers: C++ has two types of exception specifiers: throw() and nothrow. The first is deprecated (because 'we screwed up, sorry, let's forget about this terrible mess'). The second one guarantees it's contract by terminating the application when violated. That's because functions declared

novaluke

Nix seems perfect for developers - until I try to use it...

Want to use Nix for development but you're not sure how? Concerned about the fluidity of nixpkgs channels or not being able to easily install arbitrary package versions?

When I first heard about Nix it seemed like the perfect tool for a developer. When I tried to actually use it for developing and deploying web apps, though, the pieces just didn't seem to add up.

ftrain

;; .emacs

;;; uncomment this line to disable loading of "default.el" at startup
;; (setq inhibit-default-init t)

;; enable visual feedback on selections
(setq transient-mark-mode t)

;; default to better frame titles
(setq frame-title-format