| // 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.
There was a [great article][1] about how react implements it's virtual DOM. There are some really interesting ideas in there but they are deeply buried in the implementation of the React framework.
However, it's possible to implement just the virtual DOM and diff algorithm on it's own as a set of independent modules.