side-channel-weakmap
Store information about any JS value in a side channel. Uses WeakMap if available.
side-channel
Store information about any JS value in a side channel. Uses WeakMap if available.
is-weakmap
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
is-weakset
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.