The WeakMap JS definition on MDN is at least in the conversation for the worst definition of a concept I've ever read

WeakMap for Private Data 🔥

"Symbols as WeakMap keys" proposal is now implemented in #ResonanceJS

💡 JavaScript Tip of the Week!. Did you know that WeakMap and WeakSet are powerful tools for managing memory-sensitive data structures in JavaScript? They allow you to associate data with objects without preventing garbage collection, leading to more efficient memory usage. 🚀

💡 Node.js Pro Tip: Use WeakMap for lightweight caching to avoid memory leaks in long-running apps!.When you need to cache objects temporarily, WeakMap holds "weak" references to keys (usually objects), allowing garbage collection if the key object is no longer referenced.

👍🏻 Successfully serialized WeakMap, WeakSet and others.

Singleton Store: One Store to Rule Them All 📈. Ever accidentally create multiple copies of your store, leading to chaos? A WeakMap in defineStore guarantees there's only one instance per function. This keeps your state management predictable and efficient.

Ever accidentally create multiple copies of your store, leading to chaos? 👀🍍. A WeakMap in defineStore guarantees there's only one instance per function. This keeps your state management predictable and efficient. #MasteringPinia #Pinia

A little utility I came up with to avoid layout thrashing when scrolling or performing animations, etc. WeakMap + sliding TTL = auto-expiring cache!

An awesome feature of tagged template literals that is definitely underutilized, is caching the computation of TemplateStringsArray in a WeakMap.

You can use WeakMap to keep track of private data in JavaScript objects without exposing it.

I was looking at DOMPurify source code, and I have to say that this isn't safe. Attackers can pollute DOM prototypes with accessors that return expected 'internal' values (satisfying this check) on first access, with unexpected results on subsequent accesses. This needs WeakMap

The #JavaScript WeakMap is a useful tool for creating memory-efficient maps that automatically release their entries when they are no longer in use. 🧠 #webdev #programming

Day 21: Map, Set, & WeakMap 🗺️🚀.Powerful data structures for our programs!. Map: key-value pairs with any type of key. Set: collection of unique values. WeakMap: key-value pairs whose keys must be objects. :). Connect & learn JavaScript with me! 🥰.#100DaysOfCode.#30DaysOfJS

🔥 Tip: Use WeakMap for efficient memory management & automatic garbage collection! 🗑️🚀. ⚡ Why use WeakMap?.✅ Doesn't prevent garbage collection (unlike Map). ✅ Great for caching & private data storage. ✅ Keys must be objects (no primitives allowed). #javascript

عمرك سمعت بالـ WeakMap في JavaScript؟ 🤔.هي عبارة عن Map عادية لكنها تعامل الـ Keys كـ Weak Reference. 🎯 ليش مهمة؟.لانها تمنع الـmemory leak وممتازة كمخزن او كـ cache. ✅ فلو انحذف الـ Object خارجيًا، الـWeakMap يعطي الضوء الأخضر لـGarbage Collector عشان يحذفه تلقائيًا. 1/2

💡 I mentioned before the advantage of using WeakMap to store DOM elements metadata. However, caching also has advantages when comparing WeakMap vs Map. - WeakMap: Keys are weakly held, allowing for automatic garbage collection if no other references exist to the object. Ideal

Anyone knows how to animate #ogl objects? Something simple like `animate(this.sceneQuat, new Quat(0, 0, 0, 1), { duration: 0.7, ease: "easeInOut" });` throws me a WeakMap error (TypeError: Invalid value used as weak map key). I’m pretty sure threejs easily allows similar

🔎 An excellent use case of #JavaScript `WeakMap` is associating metadata with DOM elements without preventing them from being garbage collected. This is especially useful in scenarios where you want to attach data to DOM elements but don't want to risk memory leaks.