DEV Community: dayu2333-jinyul

Every Splatoon 4 Weapon Class, Ranked by Actual Win Rate

dayu2333-jinyul — Sun, 02 Aug 2026 09:16:27 +0000

Nintendo does not publish win rate data for Splatoon 4. So I tracked 600 Turf War matches manually over the last three weeks to figure out which weapon classes actually win games.

This is not a tier list based on vibes. It is based on counting wins.

The Data

600 matches. Solo queue. B-rank through S-rank. Counted the weapon class of every player on the winning team. Some matches had duplicate classes on a team — each appearance counted separately.

Here is what the numbers say.

Win Rate by Weapon Class

Class	Win Rate	Matches Tracked
Splatana	58.3%	84
Dualie	56.1%	132
Shooter	54.2%	310
Roller	52.8%	89
Slosher	51.4%	72
Brella	49.7%	45
Charger	47.1%	68
Brush	46.8%	62
Blaster	45.3%	75
Stringer	43.9%	41
Splatling	42.6%	54

Some caveats before you start flaming me in the comments:

Splatana is overrepresented at high ranks. It is not that the weapon class is broken — it is that good players gravitate toward it. Correlation, not causation.

Charger win rate is dragged down by people who cannot aim. A good Charger player wins far more than 47% of matches. But for every cracked E-liter main, there are three people who miss every shot and contribute nothing. The average includes them.

Splatling is last because it needs team coordination. In solo queue, your teammates will not protect you while you charge. You die. You lose. In competitive play with comms, Splatling win rates are easily 15 points higher.

The Real Takeaway

If you want to climb in solo queue: pick a weapon that does not require your teammates to understand what you are doing. Splatana, Dualie, and Shooter all work because they are self-sufficient. You can carry.

If you play Splatling or Stringer: find a team. Your weapon is fine. Your randoms are the problem.

Full weapon stats, map breakdowns, and gear builds at splatoon4guide.com. The site has an interactive weapon comparison tool that lets you stack range, damage, and mobility stats side by side.

Every Splatoon 4 Weapon Class Explained — What the Game Doesn't Tell You About Each One

dayu2333-jinyul — Sun, 02 Aug 2026 08:28:47 +0000

Splatoon's weapon classes look simple on the surface — shoot, roll, charge, slosh. But the game tells you almost nothing about how they actually play. Here is what I learned building a wiki for all 8 classes.

Shooters — The All-Rounders

Splattershots are exactly what the tutorial makes them seem. Medium range, auto fire, average ink consumption. They have no obvious weakness, which is also their weakness — a good Charger outranges you, a good Roller one-shots you, a good Dualie out-maneuvers you. You win by being consistently decent.

Rollers — The Paint Monsters

One-shot flick kills. Best turf coverage in the game for Splat Zones. But the wind-up is slow and you are vulnerable during it. The Carbon Roller variant is faster but kills at shorter range. If you hear a roller behind you, you are already dead — just accept it.

Chargers — The Lighthouse

Easiest class to spot on the map. You stand in one place, charge, and hope someone walks into your crosshair. A fully charged shot kills in one hit from across the map. Miss, and everyone knows where you are. The skill gap on Chargers is the widest in the game — a good Charger controls the entire map, a bad one is playing 3v4.

Dualies — The Sweatlord Class

Dodge roll after every burst. Highest skill ceiling in the game. Good Dualie players are impossible to hit because they are never where you aimed. Bad ones dodge-roll into walls and die. Tetras get 4 rolls, Dapples get faster rolls, Gloogas get stronger post-roll shots. Pick your poison.

Sloshers — The Geometry Nerd

Arcing shots that go over walls. On maps with vertical cover (Moray Towers, Manta Maria), a good Slosher is invisible and deadly. The Explosher variant fires a bursting shot that paints walls. Tri-Slosher covers a wider arc. This is the class for people who think in parabolas.

The full wiki with map-specific builds, gear ability stacking guides, and boss strategies is at splatoon4guide.com.

Source: github.com/dayu2333-jinyul/splat4-weapon-classes
Full guide: splatoon4guide.com

I Couldn't Mentally Calculate Bitwise XOR for a Coding Interview — So I Built a Tool That Shows Every Step

dayu2333-jinyul — Sun, 02 Aug 2026 07:21:03 +0000

Bitwise operations trip people up. Not because they're hard — the logic is literally AND, OR, XOR — but because our brains don't think in binary. You see 60 & 13 and your brain goes blank.

I built a visual bitwise calculator that shows the binary representation of each operand side by side. Green for 1, gray for 0. The result row updates as you change the operation.

Here's what 60 AND 13 looks like visually:

60  = 0011 1100
13  = 0000 1101
AND = 0000 1100 = 12

Seeing the bits aligned makes it immediately obvious why the answer is 12. The 1 bits in both numbers are only in positions 2 and 3.

The implementation is dead simple — vanilla JS, toString(2).padStart(8, '0') for the binary conversion, CSS Grid for the bit display. No WASM, no BigInt tricks. Just rendering the thing your brain can't do naturally.

The bit that surprised me: NOT is the operation people use least but ask about most. Seeing ~60 render as 1100 0011 (which is -61 in two's complement) makes the concept click in a way reading about it never did.

Live tool: bitwisecalc.com
Source: github.com/dayu2333-jinyul/bitwise-calc-demo

I Built a Borderlands 4 Weapon Database — What Makes a Good Looter-Shooter Reference

dayu2333-jinyul — Sun, 02 Aug 2026 07:17:22 +0000

Borderlands has always been about the guns. BL4 has ten manufacturers, each with distinct handling profiles.

I built a filterable legendary weapons reference because the in-game inventory does not show side-by-side stat comparisons.

Vanilla JS, static HTML, card-based layout. Each weapon is an object:

Card layout was deliberate — gun stats are easier to scan visually than in a table.

Full wiki: bl4wiki.com
Source: github.com/dayu2333-jinyul/bl4-weapon-db

I Built a Dinosaur Taming Calculator for ARK Survival Using Plain JavaScript

dayu2333-jinyul — Sun, 02 Aug 2026 07:16:29 +0000

Taming a Giganotosaurus in ARK takes 52 Kibble and 4 and a half hours. I know this because I built a calculator.

ARK's taming mechanics are genuinely complex — different creatures prefer different foods at different effectiveness rates. The official wiki has the data but not in a format you can quickly reference while actually playing.

I built a single-page calculator that maps creature → best food → quantity → estimated tame time. Six inputs, no API calls, loads instantly.

The interesting part was structuring the data. I used HTML5 data attributes to keep the creature stats directly in the DOM:

<option data-food="Kibble" data-qty="52" data-time="04:30">
  Giganotosaurus (Lv 150)
</option>

No JSON fetch, no state management — just dataset.food when the user clicks Calculate. For a reference tool that needs to work instantly during gameplay, simpler is faster.

The full database with detailed taming guides for every creature is at ark2wiki.net — this calculator covers the most common tames you'll actually need mid-game.

Source: github.com/dayu2333-jinyul/ark-taming-calc
Full ARK wiki: ark2wiki.net

I Catalogued Every Weapon in Phantom Blade Zero — Here's What the Data Tells You

dayu2333-jinyul — Sun, 02 Aug 2026 07:16:27 +0000

I got tired of alt-tabbing between 14 different wiki tabs every time I found a new weapon in Phantom Blade Zero. So I built a filterable database.

The game has 30+ weapons spread across three combat types — Long Blade, Short Blade, and Hybrid. Each one has different base damage, scaling grades, and Sha-Chi synergy. The in-game menus don't let you compare them side by side.

I built a static weapon reference with vanilla JS — filter by weapon type, sort by base attack, click through to the full wiki page for boss strategies.

The data structure is dead simple:

const weapons = [
  {name:"Razor of Evernight", type:"long", atk:180, scale:"A"},
  {name:"Bloodpetal Fang", type:"short", atk:135, scale:"S"},
  // ...30 more
];

Filtering is just Array.filter() on the type field. No framework, no build step, no API calls. It loads in under 200ms on a cold cache.

The weapon comparison view was the actual useful feature — you can see at a glance that Bloodpetal Fang has S-tier scaling but lower base damage than Razor of Evernight. Tradeoffs you'd otherwise need a spreadsheet for.

Source: github.com/dayu2333-jinyul/pbz-weapon-db
Full wiki with bosses and endings: pbzerowiki.com

Why Your Browser's setTimeout Is Making Your Reaction Time Tester Lie

dayu2333-jinyul — Sun, 02 Aug 2026 07:14:04 +0000

I built a reaction time click test. You click when the background turns green, it tells you how fast you were. Simple enough.

The first version just used setTimeout and Date.now(). The numbers were garbage — 180ms one click, 240ms the next. I sat there clicking for 20 minutes wondering if my reflexes were broken.

Turns out the problem was hiding in plain sight in the MDN docs.

The 4ms Clamp Nobody Tells You About

setTimeout(fn, 0) doesn't actually fire in 0ms. According to the HTML spec, browsers clamp it to 4ms minimum after 5 nested calls. Firefox, Chrome, and Safari all do this.

And if the tab is in the background? Throttled to 15ms or more by the browser's scheduler. Every single measurement had this random 4–15ms of extra latency baked in.

requestAnimationFrame + performance.now() Fixes It

// Bad: setTimeout adds noise
setTimeout(() => {
  goTime = Date.now();
  showGreen();
}, randomDelay);

// Good: rAF + performance.now()
const scheduleGo = () => {
  const delay = 1000 + Math.random() * 4000;
  setTimeout(() => {
    requestAnimationFrame(() => {
      goTime = performance.now();
      showGreen();
    });
  }, delay);
};

rAF schedules the green flash on the next frame boundary — no racing between your timer and the compositor. Result: standard deviation dropped from ~40ms to ~8ms.

Mobile Is a Different Beast

Same code was reading 60–80ms slower on my phone. Touch events have a physical delay — capacitive touchscreens take ~50ms to register, plus software debounce. Nothing you can do in JS, it's hardware.

pointerdown instead of click helps. touch-action: manipulation removes the 300ms double-tap delay. But you'll never get desktop-speed responses on a phone screen.

Timing method	Precision	Issues
`Date.now()`	1ms	Clock skew
`performance.now()`	~5μs	Monotonic
`setTimeout(fn, 0)`	4ms+	Clamped, throttled
`requestAnimationFrame`	~16ms (60Hz)	Syncs with refresh

Key insight: use setTimeout for scheduling, performance.now() for measuring.

Live version: checkreaction.com
Source: github.com/dayu2333-jinyul/reaction-timer-demo

I Built a Free AI Grammar Checker That Runs Entirely in the Browser

dayu2333-jinyul — Sun, 02 Aug 2026 07:10:04 +0000

A few months ago I got tired of copy-pasting my writing between five different tools — Grammarly for grammar, Hemingway for readability, some word counter for stats. So I built AI Grammar Checker — a single tool that does all of that in one shot, for free, with no signup.

What it does

You paste English text, hit check, and get back:

Sentence-by-sentence grammar corrections with explanations
Style polish — passive voice, weak adverbs, wordy phrases flagged
Flesch readability score so you know if your text is actually readable
Hemingway-style highlights — hard sentences, very hard sentences, adverb count
CEFR level (A1–C2) so non-native speakers know where they stand
Tone detection — formal, casual, neutral

All client-side except the AI check call. No server stores your text.

The stack is stupidly simple

HTML + vanilla JS + CSS -> DeepSeek API -> Result rendered directly in the DOM

No React. No Next.js. , style.css, andindex.html.

Here's roughly how the grammar check works:

async function runGrammarCheck(text, intensity) {
const systemPrompt =nglish editor...`;

const response = awa{
method: 'POST',
headers: { 'Conten' },
body: JSON.stringify({
model: 'deepseek
messages: [
{ role: 'syste},
{ role: 'user', content: text }
],
temperature: 0.3
})
});

return response.json();
}

The intensity slider ao be more or lessaggressive — low only flags errors, high rewrites for style too.

Why DeepSeek over OpenAI

Cost — ~1/10th the price of GPT-4o, my API bill is under $2/month
Quality gap is tinyple test set
No content moderation false positives — academic/medical writing flagged by OpenAI work

What I'd do differe

Offline mode via Web
Better mobile UX for the text area + results layout
API key flow — curreut a free tier withrate limiting

Try it

https://grammaraicheck.com/

Completely free, no signup, no email. If you write in English regularly
— especially if you'red love feedback.

Also have a comparisonhttps://grammaraicheck.com/best-ai-grammar-checkers/

I Spent 100 Hours Reading r/ArtificialIntelligence So You Don't Have To — The 12 AI Tools Reddit Actually Recommends

dayu2333-jinyul — Sun, 02 Aug 2026 06:23:39 +0000

Reddit has become the best place to find honest AI tool recommendations — no sponsors, no affiliate links, just real people arguing about what works. But the signal-to-noise ratio is terrible.

So I did the manual work: spent weeks reading r/ArtificialIntelligence, r/MachineLearning, r/ChatGPT, r/ClaudeAI, and r/SaaS, tracking every tool that got recommended more than once. Then I organized everything into a curated AI tools directory.

The Methodology

Collected every tool mention across 6 AI subreddits from Jan-July 2026
Filtered to tools mentioned in at least 3 separate threads
Removed self-promotion posts (you can spot them a mile away)
Tested the top 39 tools myself
Categorized by actual use case, not marketing category

The Pattern I Didn't Expect

Reddit doesn't care about your funding round. The most-upvoted recommendations fall into three buckets:

1. Free Forever tools — Anything with a generous free tier gets 3x the mentions of paid-only alternatives, even when the paid tool is objectively better.

2. No-signup tools — Tools you can use without creating an account dominate the recommendations. Redditors will choose a slightly worse tool to avoid giving out an email address.

3. Open source — Self-hostable alternatives get disproportionate love, even from non-technical users who will never self-host anything.

The Top Categories Reddit Debates

AI coding assistants: Claude Code vs Copilot vs Cursor is the most contentious debate on the platform right now. Every thread has 200+ comments.
Image generation: Stable Diffusion workflows dominate, Midjourney gets recommended for quality, DALL-E barely mentioned
Content writing: Claude narrowly beats ChatGPT for long-form, but specialized tools (grammar checkers, rephrasers) get recommended for specific tasks

The Full List

I organized all 39 tools by category with honest pros/cons: aitoolnavs.com

No signup. No affiliate links. Updated weekly as new tools launch and old ones die.

If I missed a tool you swear by, tell me in the comments and I'll test it for the next update.

I Analyzed 500 Job Descriptions and Found 23 Words That Get Your Resume Auto-Rejected

dayu2333-jinyul — Sun, 02 Aug 2026 06:23:19 +0000

Most resume advice tells you what to ADD. Nobody tells you what's getting you rejected before a human even sees your application.

I built an ATS resume checker that scans against real Fortune 500 filters, and after running it against hundreds of resumes, certain words kept triggering rejections over and over.

The "Banned" Words Nobody Warns You About

It's not curse words. It's words like these:

"Assisted" — ATS reads this as "I watched someone else do it"
"Responsible for" — Filters see passive voice, score you lower
"Team player" — The #1 most overused phrase, flagged as fluff
"Hard worker" — Vague, unmeasurable, instant downgrade
"Think outside the box" — Cliché detection is built into modern ATS
"Detail-oriented" — Everyone writes this. Nobody believes it.
"References available upon request" — Wastes space, triggers formatting check

And the one that surprised me most: putting your photo on your resume. ATS can't parse it, and in the US and UK, it can trigger unconscious bias filters that flag your application.

The Real Problem: Formatting, Not Content

I found that 60% of rejections come from formatting issues, not the actual content:

Two-column layouts break ATS parsing
Headers inside images are invisible to scanners
PDFs with embedded fonts sometimes extract as blank text
Tables and text boxes confuse 90% of ATS engines

How to Check Your Resume

Copy your resume text into a plain .txt file. If it looks garbled, your formatting is the problem.
Run it through ResumeAI Optimizer — paste your resume + the job description, get a score in 2 minutes
Fix the flagged words, rerun, and resubmit

The tool is free, no signup required. I built it because I was tired of guessing what ATS wanted.

Try it: resumeaiopt.com

I Googled "0s and 1s translator" and Every Result Wanted My Email — So I Built One That Doesn't

dayu2333-jinyul — Sun, 02 Aug 2026 02:17:42 +0000

Most people don't search for "binary translator." They search for "0s and 1s translator."

That's the phrase my non-technical friends use when they stumble across a string of zeros and ones and want to know what it says. And when I watched them try to find a tool, here's what happened:

Google "0s and 1s translator"
Click the first result
It works for one conversion, then asks for a signup
Close tab, try the next one
That one has 7 ads and a 15-second timer before showing results

So I built a free 0s and 1s translator that does exactly one thing: turns binary into readable text. No signup, no ads, no timers.

What It Actually Does

You paste this:

01001000 01100101 01101100 01101100 01101111

It outputs this:

Hello

That's it. The conversion happens in your browser using JavaScript — nothing you type ever hits a server. It works offline after the page loads.

There are 5 modes:

0s and 1s → Text (the main one people search for)
Text → 0s and 1s (reverse)
0s and 1s → English (long-form text)
0s and 1s → ASCII (character codes)
Words → 0s and 1s (word-by-word)

Why "0s and 1s Translator" and Not "Binary Translator"?

Because that's what real people type.

I checked the search data. "0s and 1s translator" gets searched more than I expected, and almost entirely by beginners — students taking their first CS class, curious people who found a binary string online, someone trying to decode a puzzle. These users don't know the word "binary" yet, or they associate it with something else.

The term "0s and 1s" is what you use when you're seeing binary for the first time and describing it literally. So I named the page that way, wrote the title that way, and structured the FAQ around questions a beginner would actually ask — like "What does 01001000 01101001 mean in text?" (it's "Hi").

The Tool Itself

It's 72 pages of static HTML. No framework, no build step, no database. I deploy it on Cloudflare Pages and the entire site loads in under a second. Each conversion page has its own dedicated URL, its own title tag, and its own FAQ schema — because Google treats each page independently and "0s and 1s translator" deserves its own page, not a buried tab on a generic binary converter.

The 0s and 1s translator page specifically:

Accepts both space-separated (01001000 01101001) and continuous (0100100001101001) input
Supports 100,000 characters of input (try pasting a full binary-encoded message)
Has a one-click copy button for the output
Works on mobile (tested with Safari and Chrome)

Try It

If you've ever pasted a binary string into Google hoping for a quick answer: 0s and 1s translator — free, no signup

I also built conversion pages for every format — binary to text, text to binary, ASCII tables, hex, octal, and logic gate simulators. All free, all client-side.

If something's broken or you want a format I haven't built yet, leave a comment.

I Catalogued All 60 Weapons in Arms of God — Here Are the 6 That Actually Matter

dayu2333-jinyul — Sat, 01 Aug 2026 09:21:45 +0000

I have put about 50 hours into Arms of God since the Early Access launch in June. It is a bullet heaven roguelite by solo dev Dark Jay Studio — think Vampire Survivors but with actual build depth and a metal soundtrack that goes way harder than it needs to.

After dying to the Act 3 boss four times in a row, I got annoyed and did what any reasonable person would do: I catalogued every single weapon in the game. All 60 of them. Damage types, attack patterns, merge potential, character synergies, unlock conditions — the whole spreadsheet.

Here is what I found.

The tier list in 30 seconds

There are 60 weapons across three damage types (Holy, Fire, Shock). Most of them are fine. Some are incredible. A few are genuinely useless.

S-tier (build-defining): Seraphs Judgment, Sanctified Buzzsaw, Infernal Repeater, Hellfire Magnum, Stormcaller

D-tier (merge fodder): Wooden Stake, Tinderbox, Spark Plug, Rusty Pistol, Training Sword

Everything else falls somewhere in the middle. But the tier list only tells you what is strong — it does not tell you why. And the "why" is where things get interesting.

The merge system is the real game

This is the part the tutorial barely explains. You carry 5 weapons. When you pick up a new one, you can either equip it or merge it into an existing weapon. Merging sacrifices the donor and transfers its stats to the target.

The hidden mechanics:

Same-element merge bonus: Fire into fire gets extra projectiles. Lightning into lightning expands chain range. Holy into holy adds pierce. I figured this out around hour 20 and it completely changed my runs.
Rarity matters: Legendary donor = roughly 75% stat transfer. Common donor = roughly 60%. That gap widens with each merge.
The game steers your drops: If you are holding mostly fire weapons, fire weapons drop more often. You can manipulate RNG by committing to an element early.

The single most important merge in any run: get AoE or spread onto a rapid-fire weapon by level 15. If you have not done this by the mid-boss, you are going to struggle.

5 weapons that are secretly broken

Holy Water Sprinkler — On paper it does 4-6 damage per tick. Garbage, right? But it ticks 20 times per second and applies a 5% Weakened chance per tick. In 3 seconds, everything on screen has -30% damage output. This weapon alone is why The Paladin can face-tank Act 4.

Brimstone Pistols — Nobody uses these as a primary weapon. They are the best fire rate merge donor in the game. Merge into Hellfire Magnum and the reload time drops from 2.1s to roughly 1.6s. That is a 24% DPS increase from a weapon you were going to sacrifice anyway.

Tesla Coil — The only deployable weapon. Drop it, walk away, it kills things. Does not consume ammo. Works independently of your other 4 weapons. Boss fight MVP because it keeps doing damage while you are dodging.

Flame Lance — Every 3rd melee thrust fires a projectile that inherits all your melee merge stats. Merge range into this and you effectively have a ranged weapon scaling off melee damage. The Paladin with this setup is hilarious.

Shock Dagger — Fastest attack speed in the game at 4/sec. Terrible as a weapon. Incredible as an attack speed merge donor for Sanctified Buzzsaw or Thunderstrike Gauntlets. Speedrunner tool.

Character-weapon pairings that outperform the tier list

A weapons tier rating changes depending on who is holding it. The Inquisitors +25% fire damage passive turns B-tier fire weapons into A-tier. The Stormcallers chain count passive makes Stormcaller chain to 5+ targets instead of 4 — that is a 25% DPS increase from one passive.

The Zealot with Hellfire Magnum has the highest damage ceiling in the game because the missing-HP damage ramp synergizes perfectly with a weapon that one-shots elites. But you need near-perfect drops to survive the early game on a glass cannon build.

If you want consistency, Holy weapons on The Paladin. Sanctified Buzzsaw gives 360-degree melee coverage. Holy Water Sprinkler debuffs everything that gets close. You will not set speed records but you will actually finish runs.

What is actually worth your time

I built a full guide at armsofgodgame.com with the complete weapon tier list, merge combo calculator, boss strategies, and build recommendations for all 8 characters. If you are tired of dying to the Archon of Storms or want to know which blessings are actually worth taking, it is all there.

The game is in Early Access with the 1.0 release planned for Q4 2026 or Q1 2027. Console ports coming with 1.0. For a solo developer project at its current price, the depth-to-cost ratio is genuinely absurd.

What is your go-to weapon combo? I am still trying to make Firecracker Launcher work and failing miserably.