| #include <stdio.h> | |
| #include <stdlib.h> | |
| #define da_append(xs, x) \ | |
| do { \ | |
| if ((xs)->count >= (xs)->capacity) { \ | |
| if ((xs)->capacity == 0) (xs)->capacity = 256; \ | |
| else (xs)->capacity *= 2; \ | |
| (xs)->items = realloc((xs)->items, (xs)->capacity*sizeof(*(xs)->items)); \ | |
| } \ |
| // Compile with clang or MSVC (WINDOWS ONLY RN) | |
| // | |
| // Implementing a POC green threads system using safepoints to show how cheap and simple it can | |
| // be done, all you need to do is call SAFEPOINT_POLL in your own language at the top of every | |
| // loop and function body (you can loosen up on this depending on the latency of pausing you're | |
| // willing to pay). Safepoint polling is made cheap because it's a load without a use site | |
| // which means it doesn't introduce a stall and pays a sub-cycle cost because of it (wastes resources | |
| // sure but doesn't block up the rest of execution). | |
| // | |
| // # safepoint poll |
I created a crude comparison of the syntax of the various common Markdown extensions to have a better view on what are the most common extensions and what is the most widely accepted syntax for them. The list of Markdown flavors that I looked at was based on the list found on CommonMark's GitHub Wiki.
| Flavor | Superscript | Subscript | Deletion* Strikethrough |
Insertion* | Highlight* | Footnote | Task list | Table | Abbr | Deflist | Smart typo | TOC | Math | Math Block | Mermaid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GFM |
| tvOS 10: 1080p + H.264 | |
| http://a1.phobos.apple.com/us/r1000/000/Features/atv/AutumnResources/videos/entries.json | |
| tvOS 11: 1080p/4K + SDR/HDR + HEVC | |
| https://sylvan.apple.com/Aerials/2x/entries.json | |
| https://t27q97zg19.execute-api.us-east-1.amazonaws.com/prod/aerialAltJSON/4kEntites.json | |
| tvOS 12: 4K + SDR/HDR + HEVC, 1080p + H.264, localised descriptions | |
| https://sylvan.apple.com/Aerials/resources.tar |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
For background and further references see: Entity Component Systems on Wikipedia
entity = class: no logic + no data OR at most small set of frequently used data (ie position)component = class: logic + dataforeach entity in allEntities do
foreach component in entity.components do
Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
(by @andrestaltz)
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.