#iterators
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bodhi000.bsky.social
#rainworld #oc #followertimeoc
Pearls in the Old Archives(2)
This pearl records some information about the "great flood". Little follower, please sit down and listen to me. During the void fluid revolution, iterators were established one after another, and our operation had some impact on the climate. The northern mountains were once covered with ancient glaciers. after climate change, meltwater rushed down from the mountains and flattened the surrounding towns. today, there are still huge sinkholes left by floods on the west coast. My memory of this incident is blurred, but that fear is still deeply imprinted in my organism.
November 11, 2025 at 4:04 PM
dubroy.com
Somewhat surprising (to me) advice in Google's C++ style guide:

"Try to avoid unsigned types (except for representing bitfields or modular arithmetic). Do not use an unsigned type merely to assert that a variable is non-negative."

Example of a possible bug: abseil.io/tips/227

(via @wingolog.org)
On Unsigned Integers Unsigned integers are good for representing bitfields and modular arithmetic. Because of historical accident, the C++ standard also uses unsigned integers to represent the size of containers - many members of the standards body believe this to be a mistake, but it is effectively impossible to fix at this point. The fact that unsigned arithmetic doesn't model the behavior of a simple integer, but is instead defined by the standard to model modular arithmetic (wrapping around on overflow/underflow), means that a significant class of bugs cannot be diagnosed by the compiler. In other cases, the defined behavior impedes optimization. That said, mixing signedness of integer types is responsible for an equally large class of problems. The best advice we can provide: try to use iterators and containers rather than pointers and sizes, try not to mix signedness, and try to avoid unsigned types (except for representing bitfields or modular arithmetic). Do not use an unsigned type merely to assert that a variable is non-negative.
November 11, 2025 at 3:45 PM
sakurakat.systems
when I was new to rust, I forced myself to use iterators wherever possible, and now manually zipping feels unreadable, funny
November 11, 2025 at 4:46 AM
gicrisf.bsky.social
Thank you, appreciate the support! I'd be happy to have people try out this early implementation and giving me feedbacks: right now, I'm writing a lazy-stream implementation to handle all the iterators idiomatically, avoiding the need to eagerly copy results into temporary Emacs lists
November 8, 2025 at 5:12 PM
arroz.mastodon.social.ap.brid.gy
@lorentey Now that I think about it more carefully, yeah, it really has to be eager, otherwise everything else like iterators of lazy sequences would have to handle throwing. Makes sense. And I can work around it in this case. Lazy sequences are providing a very elegant solution for a complex […]
Original post on mastodon.social
mastodon.social
November 7, 2025 at 3:57 PM
bram.xyz
Personally I don’t enjoy writing Iterators or Futures manually, and fear making subtle bugs. Those are some of the cases where I might choose a callback style instead
November 6, 2025 at 5:35 PM
donnywals.bsky.social
Did you know that the ability to iterate arrays, sets, and dictionaries in Swift are a result of Swift's protocol oriented design?

Learn more in this week's post: https://www.donnywals.com/a-deep-dive-into-collections-sequences-and-iterators-in-swift/
November 6, 2025 at 11:12 AM
futureasapresent.org
Thanks for your blog, today I read your post about iterators blog.saeloun.com/2023/11/23/u... You might check the examples of the "every" & "find" methods, that somehow repeat the code of the previous "some" method.
Understanding Generators, Iterators, and Iterator Helpers in JavaScript
Understand JavaScript generators for pausing functions, ideal with large datasets. Learn iterator basics, next() method, and efficient iteration with helpers
blog.saeloun.com
November 5, 2025 at 7:00 AM
docsteve2020.bsky.social
I am sure the Progenitors and Iterators tell themselves that they are holding all the cards as they hand another supply of anagathics to the Syndicate.

It’s a reassuring lie.
November 3, 2025 at 5:00 PM
devleader.ca
But it can also be really confusing to understand, which is exactly why I made this video to help you out.

Let's step through some code so you can see the behavior of the yield keyword and how it works inside of iterators!

Watch here:
https://www.youtube.com/watch?v=3UdX6G7a38U
https://www.youtube.com/watch?v=3UdX6G7a38U
https://www.youtube.com/watch?v=3UdX6G7a38U
www.youtube.com
November 2, 2025 at 10:00 PM
permutans.bsky.social
🪢 Rope (data structure) en.wikipedia.org/wiki/Rope_(d...
🦀 ropey::Rope, a UTF-8 text rope docs.rs/ropey/latest...
🧬 As used by helix github.com/helix-editor...
A rope is a tree-based data structure for efficiently storing and manipulating very long strings of text. Instead of storing text as a single contiguous array of characters (like a normal string), a rope splits the text into smaller chunks and organizes them in a binary tree structure. Each leaf node holds a substring, and each internal node stores the sum of the lengths of all leaves in its left subtree (called the weight), which enables the tree to navigate efficiently during operations. The key advantage is that operations like insertion, deletion, and concatenation in the middle of large texts become much faster - typically O(log n) instead of On) - because you're only rearranging tree nodes rather than copying and shifting large blocks of characters. Rope implementations typically treat the string chunks as immutable constant objects, enabling copy-on-write behavior. Leaf nodes often use reference counting for memory management and deallocation. Ropey uses Unicode scalar values (Rust char s) as its atomic unit, with all operations indexed by char position to prevent invalid utf8. The library provides four main components: the main Rope type, RopeSlice for immutable views, iterators, and RopeBuilder for incremental construction. Internally, text is stored as a segmented collection of utf8 strings called chunks, accessible directly via chunk-fetching methods and a Chunks iterator for building custom functionality. Ropey defines line breaks carefully: the start of the rope and positions immediately after line break characters begin new lines, with the line break character belonging to the line it terminates. By default it recognizes LF and CRLF (treated as a single unit), with optional feature flags for CR and Unicode line breaks. The library includes SIMD acceleration via a feature flag enabled by default for performance on supported platforms.
November 2, 2025 at 2:55 PM
ooo00oo0.bsky.social
i wanna return to watercolor eventually!!!😔😔😔 maybe when the sems over...
blue watercolor painting of ghost under butterflies. there are also clouds in the background. two panels of a black and white watercolor painting of the hollow knight, white lady, and pale king. the first panel has a black background, with white lady being fully white, and there is a white spotlight that has the shadow of the hollow knight as a child. the second panel has a black background, with the pale king being fully white, and there is a white spotlight with the hollow knight's shadow, now fully grown. watercolor painting of the iterators in some sort of afterlife. looks to the moon, no significant harrassment, and seven red suns are welcoming five pebbles. watercolor paintings of quirrel and monomon together. each painting is monochromatic and are of different colors.
November 2, 2025 at 9:57 AM
lunarcoilzone.bsky.social
honestly if all the iterators broke down and the climate stabilized itsef (albeit cooling down) they might have a chance, like humans coming to prominence in the ice age
November 1, 2025 at 10:54 PM
frontenddogma.com
JavaScript for Everyone: Iterators, by @[email protected] (@[email protected]):

https://www.smashingmagazine.com/2025/10/javascript-for-everyone-iterators/

#javascript
JavaScript For Everyone: Iterators — Smashing Magazine
Here is a lesson on Iterators. Iterables implement the iterable iteration interface, and iterators implement the iterator iteration interface. Sounds confusing? Mat breaks it all down in the article.
www.smashingmagazine.com
November 1, 2025 at 7:30 AM
senblades.bsky.social
you bring Moon the sky islands pearls, and are suddenly graced with the knowledge that all iterators are just a bunch of losers in a discord group, and that Five Pebbles is in fact a stiff, clipped asshole by Everyone's standards, and that telling you to kill yourself was only somewhat normal
October 31, 2025 at 10:09 PM
My miniKanren 2025 paper, "Fair intersection of seekable iterators", about an efficient, compositional way to implement relational joins on sorted data structures, and how it (sorta) requires "fairness", is now on arXiv: arxiv.org/abs/2510.26016

talk slides: www.rntz.net/files/minika...
October 31, 2025 at 6:58 PM
hotovomeansdone.bsky.social
Stay up to date with what’s happening in web development.
This month’s picks include the 𝐑𝐞𝐚𝐜𝐭 19.2 𝐫𝐞𝐥𝐞𝐚𝐬𝐞, updates on the 𝐑𝐞𝐚𝐜𝐭 𝐜𝐨𝐦𝐩𝐢𝐥𝐞𝐫, and helpful 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭 𝐚𝐫𝐭𝐢𝐜𝐥𝐞𝐬 covering iterators and async loops.
Check it out 👇

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October 31, 2025 at 9:00 AM
cspl-bot.bsky.social
Michael Arntzenius: Fair intersection of seekable iterators https://arxiv.org/abs/2510.26016 https://arxiv.org/pdf/2510.26016 https://arxiv.org/html/2510.26016
October 31, 2025 at 6:34 AM
arxiv-cs-pl.bsky.social
Michael Arntzenius
Fair intersection of seekable iterators
https://arxiv.org/abs/2510.26016
October 31, 2025 at 4:15 AM
kalvn.net
Démystifiage des itérateurs JavaScript.

L'article aborde essentiellement les itérables, les itérateurs et les générateurs.

🔗 https://nodejsdesignpatterns.com/blog/javascript-async-iterators/

#JavaScript #pattern #loop
JavaScript async iterators
An in-depth exploration of JavaScript iteration protocols with a special focus on async iterators
nodejsdesignpatterns.com
October 30, 2025 at 10:07 PM
trey.io
"And the equality operator doesn't work very well with iterators." Read the full article: Checking whether iterables are equal in Python �¸ https://trey.io/0frqkp #Python
October 30, 2025 at 6:05 AM
voidbugs.bsky.social
why are the anime girls in umamusume named the same way as the iterators in rainworld. i want you to guess between the names "special week" and "looks to the moon" and tell me which one is the name of a bright eyed anime horse girl and which one is the name of a miles wide supercomputer
October 30, 2025 at 2:03 AM
hypfoo.bsky.social
I think it could theoretically happen pretty quickly if any of the iterators willed it 🤔

Without their help tho, pretty unlikely with how harsh the environment is 😔
October 29, 2025 at 3:22 PM
nrposner.bsky.social
- concurrency typing built in w/ Send + Sync. You won't touch them too often, but the peace of mind is great
- functional-inspired iterators + closures are useful and unobtrusive until you're ready for them
- a language that has your back w/ safety
- cargo. full stop. www.youtube.com/clip/UgkxBju...
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October 29, 2025 at 3:12 AM
bluesky.awakari.com
解构Go函数迭代器——为什么 break 没有按预期工作？ 本文永久链接 – https://tonybai.com/2025/10/29/why-break-in-go-function-iterators-does-not-work 大家好，我是Tony Bai。 在我的极客时间专栏《Tony Bai·Go语言进阶课》的关于 Go 1.23+ 函数迭代器的第9讲中，我介绍了一种非常强大的高级用法——迭代器组合 (Iterator Composition)。通过像 Filter 和 Map 这样的高阶函数，我们可以用一种相对优雅、富有...

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tonybai.com
October 29, 2025 at 12:39 AM