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Update destination functions - including variable scoping [DOC-1065] #7512

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Apr 15, 2025
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Update destination functions - including variable scoping [DOC-1065] #7512

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Update destination functions - including variable scoping.md
sade-wusi Mar 21, 2025
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Update src/connections/functions/destination-functions.md
sade-wusi Mar 28, 2025
f0d1a42
Update src/connections/functions/destination-functions.md
sade-wusi Mar 28, 2025
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6 changes: 6 additions & 0 deletions src/connections/functions/destination-functions.md
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Expand Up @@ -79,6 +79,12 @@ To change which event type the handler listens to, you can rename it to the name
> info ""
> Functions' runtime includes a `fetch()` polyfill using a `node-fetch` package. Check out the [node-fetch documentation](https://www.npmjs.com/package/node-fetch){:target="_blank"} for usage examples.

### Variable scoping

When declaring settings variables, declare them in the function handler rather than globally in your function. This prevents you from leaking the settings values across other function instances.

The handler for destination functions is event-specific. For example, you might have an `onTrack()`or `onIdentify()` function handler.

### Errors and error handling

{% include content/functions/errors-and-error-handling.md %}
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