Randy Creasi

@AdamRackis @LauraFlowD Yeah, fair enough. I've never bumped on it too much though.

@Randemonium @LauraFlowD Bro sometimes conditionals nest. And sometimes syntactically you need an expression instead of a statement

Eat my entire asshole eslint I'll nest ternaries if I want

@LauraFlowD @AdamRackis It's not a question of easy to read. With each ternary you nest, that's 2ⁿ cases you're attempting to cover. It's unlikely you've really considered them all. More likely you're modeling the problem wrong.

@AdamRackis easy to read if tabbed

@vintrwt @nizzyabi Configure it to translate everyone into the language you're learning on Duo. Instant immersion.

@nizzyabi So no need to keep my duolingo streak going? 😅

this is wild

@GiftVincy @denicmarko That also (sort of!) justifies why NaN != NaN. If a calculation produces a result that's outside the universe of things we can represent, then we can't even say if it's equivalent to another such result.

@Randemonium @denicmarko that’s a neat way to frame it makes the whole NaN concept easier to digest

JavaScript Quiz! Can you guess what the output of the code below will be?

@GiftVincy @denicmarko When you see "not a number" think "not a number you can represent with floating point math" instead. sqrt(-1) *is* a number, it has a definition in complex math, but floating point calculations can't represent it so they turn it into NaN.

@denicmarko it will print as 'number' because in JavaScript, NaN is still considered a number type. Just one of those JS quirks!

@NameNick90 @TheMarz77 @PicturesFoIder That makes perfect sense once you understand the concept of project but I can't help but feel the animation would've been more approachable if they just used a sphere ¯\_(ツ)_/¯

@TheMarz77 @PicturesFoIder The map which is used is called the Mercator projection. This map makes the land look neat and uniform, at the cost of showing accurate land size. Land at the top and bottom of the map is stretched, making Greenland look much larger than it's true size.

How big is Australia

@jaredforsyth Teach them to play Conway's Game of Life.

ok somebody gotta figure out the algorithm for this

@denicmarko This cheatsheet is confusing because some of these methods mutate the array in place and return something else entirely.

JavaScript Array methods cheat sheet:

@opensas @TranquilMarmot @JNYBGR @MozDevNet What if you want to fill the array *with* functions?

@TranquilMarmot @JNYBGR @MozDevNet .fill should also be able to receive a function, with the current index and a reference to the whole array itself as parameters, and it should just push what that functions returns

10 years JS experience, still trapping myself

@rossipedia It's rumored that was Jonny Greenwood trying to mess up the song because he didn't like it. #Composition" target="_blank" rel="nofollow noopener">en.wikipedia.org/wiki/Creep_(Ra…

@BenKingNTU That's a fair point, you could just return `response.json()`, no await needed. But assigning a promise to a variable called `data` is certainly misleading. And often you'll want to do something with `data` before returning it and that would not work without the `await`.

@Randemonium @MufcRichie @thomasfindlay94 No it doesn’t. Async functions always return promises. You would just return response.json()

Async code in JS can sometimes be tricky, but often it doesn't work because of a small mistake. Can you see what's the problem with this code? 🧐 Share it below 👇

@MufcRichie @thomasfindlay94 Almost. It needs to be on both. `response.json()` also returns a Promise.

@thomasfindlay94 Await should be on fetch as it returns a promise. The await currently on the third line isn’t needed.

Finished REDE, a Regex IDE which visualizes the structure and evaluation of Regex/NFAs for my submission to @handmade_net visibility jam

@Toninho79391792 Yes, you have the right idea.

JS arrow functions are great. ✅ Concise ✅ Optional implicit return ✅ Don’t have their own “this” context But, I don’t recommended using them everywhere. Prefer function declarations for *top-level* functions. Here's why.

Life Universe oimo.io/works/life Explore the infinitely recursive universe of Game of Life! Works in real-time and is perfectly consistent, never fails to remember where you are and where you came from. 無限に再帰するライフゲームの宇宙を探索できる作品を作りました #indiedev

@wollantine I tend to think of the test runner as a domain-specific language. In that framing, `cy` is a built-in rather than a mysterious global.

@housecor Using misterious globals that come from nowhere gives me chills. But Playwright's magic dependency injection with proxies is not much better. What's up with end to end test runners' APIs? Not a single one has ever heard of DX, much less FP.

Yesterday I shared why I'm switching from Cypress to Playwright. But Cypress is solid too. Here are 4 Cypress benefits: 1. More concise syntax. In Cypress, I don’t have to say “await”, “expect”, or “exact” constantly. In Playwright, I must use these 3 keywords a lot. 1/5 👇

@ericbureltech Those keys suggest you use vim, in which case I'd like to inform you that vim actually has an undo tree. g- and g+ move through it. You won't lose your changes. #undo-branches" target="_blank" rel="nofollow noopener">vimhelp.org/undo.txt.html#…

@dan_abramov Yes except that it's "u" then "ctrl+R" because I am fancy person I fear the day where I accidentally press another key and lose all changes during the fast forward step

@joelnet Promises were originally implemented in userland. When native support was added, it was desirable to maintain compatibility with libraries like Q and Bluebird. Therefore, any object with a `then` property is considered a "thenable." masteringjs.io/tutorials/fund…

Why does the function inside two() get called? Why does await one() return an object while await two() returns the string "TWO"? #JavaScript

@jimw153 @abakcus

Probably, the second most interesting prime number! 😮