Development Skill
Angular Migration
Migrate from AngularJS to Angular using hybrid mode, incremental component rewriting, and…
$15
Modern JavaScript Patterns
Master ES6+ features including async/await, destructuring, spread operators, arrow functions…
A complete working reference for modern JavaScript (ES6 and beyond) covering async/await, destructuring, spread and rest, generators, modules, and functional patterns. Every concept comes with runnable code and the mental model behind it, so you refactor legacy code and write clean async logic with confidence rather than copy-paste guesswork.
$15 one-time
Add to a kit → Prices include 20% VAT. · Forged on real agency work · one-time, no lock-in
- Type Skill
- Category Development
- Delivery Email · instant
- License One-time
Inside the run · no black box
See the actual work before you buy it.
One uncaught promise rejection can kill a Node process. Modernizing legacy JavaScript is therefore less about syntax taste and more about survival, and this sweep treats it exactly that way.
- Sweeps the legacy surface first: callback chains, var declarations, string concatenation and in-place array mutation get flagged as conversion targets before anything is rewritten.
- Converts async flow deliberately: callbacks and .then() chains become async/await wrapped in try/catch (an uncaught rejection kills the process), and independent awaits are collapsed into Promise.all so sequential waterfalls become parallel calls.
- Enforces immutability on every data path: spread for shallow updates, structuredClone for deep copies, mutating methods like push and sort replaced with [...arr, item], filter and toSorted. Pure functions in, side effects out.
- Restructures into ES modules: named exports so tree shaking can actually delete dead code, internal helpers kept unexported, and dynamic import() for code the user may never need.
- Adds flow-control guards where async meets scale: chunked batches instead of an unbounded Promise.all over a thousand fetches, debounce and throttle on hot events, AbortController timeouts on long requests.
- Verifies against the event loop model: microtask versus macrotask ordering is checked on every async refactor, nullish coalescing replaces || where 0 and empty string are legitimate values, and optional chaining is kept off critical paths where an explicit null check must surface the error.
One power source. 6 lines out.
modern-javascript-patterns · core
core active · 6 lines
- ✓ migrating callback chains
Migrating callback chains and Promise pipelines to async/await with proper error handling
- ✓ refactoring legacy loops
Refactoring legacy loops into map, filter, reduce, and immutable array methods
- ✓ building data transforma…
Building data transformation pipelines with compose and pipe
- ✓ handling paginated apis
Handling paginated APIs with async generators and lazy evaluation
- ✓ adding debounce, throttle
Adding debounce, throttle, and memoization to performance-critical code
- ✓ replacing mutation bugs
Replacing mutation bugs with spread-based immutable updates
Yours to keep.
Drag time forward. Watch what stays.
Forever
That's what owning means.
The rented stack
ai writing tool: subscription
expired · access lostanalytics suite: subscription
expired · access lostdesign platform: subscription
expired · access lost(nothing left)
Your forge
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Write more readable code with optional chaining and nullish coalescing instead of defensive clutter
license: perpetual -
Avoid the falsy traps and this-binding bugs that break legacy refactors
license: perpetual -
Process large datasets without exhausting memory through lazy generators
license: perpetual -
Prevent unhandled rejections and silent failures with disciplined try/catch
license: perpetual
subscriptions expire · deeds don't
Everything in the box.
Pick a piece up. Watch it work.
Event loop micro/macro task ordering explained for correct async sequencing
6 parts · one working system · ships instantly by email
This wasn't forged for everyone.
- Not for you if you'd rather rent a tool than own one.
- Not for you if you want someone else to run your stack.
- Not for you if you're happy guessing.
JavaScript and TypeScript developers modernizing legacy codebases or leveling up their async and functional programming fluency.
then this was forged for you.Works with
Universal by design: these run in any AI. Delivered in the open Agent Skills + MCP format (native in Claude); ChatGPT, Gemini, Cursor and Copilot adapt the same files their own way.
- Claude Native format
- ChatGPT Adapts via open standards
- Gemini Adapts via open standards
- Cursor Adapts via open standards
- Copilot Adapts via open standards
Catch what's on your mind.
the air is clear. nothing between you and the forge.
catch a spark: the forge will answer
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I write TypeScript, not plain JavaScript. Is this still for me?
Yes. The patterns are runtime behavior, not syntax trivia: event loop ordering, generators, immutability, and async error handling apply identically under TypeScript. Types sit on top of these patterns; they do not replace them.
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Everything ES6 is already documented on MDN for free, why would I reach for this instead?
Every concept ships with runnable code plus the mental model behind it, and the pitfall lists are distilled from real refactors: falsy traps, this-binding bugs, unbounded Promise.all backpressure. MDN documents the feature; this shows where it breaks in production code.
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Does it cover React or other framework patterns?
No. It stays at the language level: async/await, destructuring, generators, modules, and functional composition. Framework state management and component patterns are a separate concern.
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How is it delivered?
By email right after purchase: ready to run, downloaded instantly, no setup wait.
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One-time or subscription?
A one-time purchase; no subscription or hidden fees. VAT (20%) is included.
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Can I get a refund?
As a digital product, it can’t be refunded once downloaded. That’s why we show exactly what’s inside and who it’s for, right here.