```markdown
## NetworksChange event

`element.on(event: 'networkschange', handler: function)`

Triggered when there is a change to the available networks the provided card can run on. If the list of available networks is still loading, an event with `networks: null` and `loading: true` is triggered. When the list of available networks loads, Stripe triggers an additional event that contains the list of these networks and shows `loading: false`. Refer to our [card brand choice guide](https://docs.stripe.com/card-brand-choice.md#identifying-the-available-card-networks) for further details.
```