Catalogue tag

#weakmap

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

6 records

Tagged “weakmap”Ranked by health index

npm

61Moderatehealth index

ljharb/side-channel

Store information about any JS value in a side channel. Uses WeakMap if available.

JavaScript★ 18↓ 605M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0

npm

52Moderatehealth index

ljharb/internal-slot

ES spec-like internal slots.

JavaScript★ 10↓ 312M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0

npm

50Moderatehealth index

inspect-js/is-weakset

Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

JavaScript★ 3↓ 293M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0

npm

49At riskhealth index

inspect-js/which-collection

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

JavaScript★ 10↓ 280M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0

npm

48At riskhealth index

ljharb/side-channel-weakmap

Store information about any JS value in a side channel, using a WeakMap for objects and a Map for primitives.

JavaScript★ 1↓ 493M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0

npm

47At riskhealth index

inspect-js/is-weakmap

Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

JavaScript★ 3↓ 281M/moJul 22, 2026

MITJul 22, 2026 · metrics 1.13.0