Class MKWeakSet<K>

Creates a new MKWeakSet object.

Could be called with initial keys

const empty = new MKWeakSet();
const withValues = new MKWeakSet([
    [{foo: 'bar'}]
]);
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Add keys to the MKWeakSet object.

const mkWeakSet = new MKWeakSet();
const obj = {};

mkWeakSet.add([obj]);
mkWeakSet.has([obj]); // => 'true'
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Removes keys from the MKWeakSet. Returns true if keys has been removed successfully.

const obj = {};
const mkWeakSet = new MKWeakSet([[obj]]);

mkWeakSet.delete([obj]); // => true
mkWeakSet.delete([obj]); // => false
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Returns true if an element with the specified keys exists in the MKWeakSet object.

const obj = {};
const mkWeakSet = new MKWeakSet([[obj]]);

mkWeakSet.has([obj]); // => 'true'
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