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kt3k/finalization-registry.js

Last active August 27, 2024 09:17
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finalization-registry.js
let counter = 0;
const registry = new FinalizationRegistry(() => {
console.log(`Array gets garbage collected at ${counter}`);
});
(function allocateMemory() {
// Allocate 50000 functions — a lot of memory!
registry.register(Array.from({ length: 50000 }, () => () => {}));
if (counter > 1000) {
console.log("Main job ends");
return;
}
counter++;
// Use setTimeout to make each allocateMemory a different job
setTimeout(allocateMemory, 10);
})();
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