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docs(test-utils): add tip about using trigger('focus') #1848

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May 26, 2021
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docs(test-utils): add tip about using trigger('focus') #1848

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4 changes: 4 additions & 0 deletions docs/api/wrapper/trigger.md
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Expand Up @@ -38,6 +38,10 @@ test('trigger demo', async () => {
})
```

::: tip
When using `trigger('focus')` with [jsdom v16.4.0](https://github.com/jsdom/jsdom/releases/tag/16.4.0) and above you must use the [attachTo](../options.md#attachto) option when mounting the component. This is because a bug fix in [jsdom v16.4.0](https://github.com/jsdom/jsdom/releases/tag/16.4.0) changed `el.focus()` to do nothing on elements that are disconnected from the DOM.
:::

- **Setting the event target:**

Under the hood, `trigger` creates an `Event` object and dispatches the event on the Wrapper element.
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