nodejs-weak-map

WeakMap is a collection introduced to JavaScript with EcmaScript 6. It provides a mapping from objects to values, but allows any entry to be garbage collected if the key is provably lost. In order for it to be possible that a key is provably lost, weak maps do not provide a way to access the key list. This is a Node.js module that provides a shim and patcher for missing or broken WeakMap implementations, suitable for use in Node.js and browsers that provide the EcmaScript 5 property description interfaces.

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