Explain WeakMap in ES6?

Sharad Jaiswal
Sharad Jaiswal

Posted On: Feb 22, 2018

 

WeakMaps provide a way to extend objects from the outside without interfering with garbage collection. Whenever you want to extend an object but can't because it is sealed - or from an external source - a WeakMap can be applied. WeakMap was also introduced by ES6 in 2015

Further reading : WeakMap in ES6

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