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Ilya Kantor 2017-05-05 02:05:52 +03:00 • committed by GitHub
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@ -253,7 +253,7 @@ john = null;
Usually, properties of an object or elements of an array or another data structure are considered reachable and kept in memory while that data structure is in memory.
In a regular `Map`, it does not matter if we store an object as a key or as a value.It is kept in memory even if there are no more references to it.
In a regular `Map`, it does not matter if we store an object as a key or as a value. It's kept in memory even if there are no more references to it.
For instance:
```js