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doc: clarify ObjectWrap weak ref behavior #1155

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Mar 31, 2022
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doc: clarify ObjectWrap weak ref behavior #1155

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4 changes: 4 additions & 0 deletions doc/object_wrap.md
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Expand Up @@ -16,6 +16,10 @@ be directly invoked from JavaScript. The **wrap** word refers to a way of
grouping methods and state of the class because it will be necessary write
custom code to bridge each of your C++ class methods.

**Caution:** When the JavaScript object is garbage collected, the call to the
C++ destructor may be deferred until a later time. Within that period,
`Value()` will return an empty value.

## Example

```cpp
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