wehub-resource-sync
26 lines
906 B
Markdown
26 lines
906 B
Markdown
# Deleting a `table()` or `view()`
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Unlike standard JavaScript objects, Perspective objects such as `table()` and
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`view()` store their associated data in the WebAssembly heap. Because of this,
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as well as the current lack of a hook into the JavaScript runtime's garbage
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collector from WebAssembly, the memory allocated to these Perspective objects
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does not automatically get cleaned up when the object falls out of scope.
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In order to prevent memory leaks and reclaim the memory associated with a
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Perspective `table()` or `view()`, you must call the `delete()` method:
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```javascript
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await view.delete();
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// This method will throw an exception if there are still `view()`s depending
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// on this `table()`!
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await table.delete();
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```
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Similarly, `<perspective-viewer>` Custom Elements do not delete the memory
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allocated for the UI when they are removed from the DOM.
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```javascript
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await viewer.delete();
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```
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