Resources for Learning

https://javascript.info/

TODO WeakMap and Weakset

Automatic Garbage collection of keys

Tricks

Find all property symbols

Object.getOwnPropertySymbols(object)

Get all objects in the entire javascript scope which have a specific function

(function deepThreeSearch() {
  const visited = new WeakSet();
  const found = [];
  function scan(obj, path = "window") {
    if (!obj || typeof obj !== "object" && typeof obj !== "function") return;
    if (visited.has(obj)) return;
    visited.add(obj);
    // Check for applyMatrix4 directly on this object
    if (obj.applyMatrix4 && typeof obj.applyMatrix4 === "function") {
      console.log("🔥 FOUND applyMatrix4 AT:", path, obj);
      found.push({ path, obj });
    }
    // Check prototype
    const proto = Object.getPrototypeOf(obj);
    if (proto && !visited.has(proto)) {
      scan(proto, path + ".__proto__");
    }
    // Scan normal property keys
    let keys;
    try {
      keys = Object.keys(obj);
    } catch (_) {
      keys = [];
    }
    for (const key of keys) {
      try {
        scan(obj[key], path + "." + key);
      } catch (_) {}
    }
    // Scan symbol property keys
    let syms;
    try {
      syms = Object.getOwnPropertySymbols(obj);
    } catch (_) {
      syms = [];
    }
    for (const sym of syms) {
      try {
        scan(obj[sym], path + "[" + sym.toString() + "]");
      } catch (_) {}
    }
  }
  console.log("⏳ Starting deep scan...");
  scan(window);
  console.log("✅ Scan complete. Found:", found);

  return found;
})();

Tag: #javascript