WeakMap : Object
WeakMaps allow associating keys and values similar to Map except WeakMap does not allow iterating over its keys or values. If WeakMap would be the only object holding on to the key/value pair, the pair will be released from memory. The keys cannot be primitive values (Boolean, Number, String, or undefined).
Instance Methods
Removes key
and its corresponding value from this
. Returns true
if key
was in this
before deleting it.
Example:
RunResults:
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