@kvaser/canking-api/doc_md/hooks/functions/useIsOnline.md

CanKing API to communicate with the CanKing service using Node.js.

[**Kvaser CanKing GUI Extensions SDK v7.5.1**](../../README.md)

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[Kvaser CanKing GUI Extensions SDK](../../modules.md) / [hooks](../README.md) / useIsOnline

# Function: useIsOnline()

> **useIsOnline**(): `boolean`

Hook keeping track of if the measurement is online.

## Returns

`boolean`

A flag that indicates if a measurement is started.

## Example

```
const isOnline = useIsOnline();

if (isOnline) {
  // Measurement is online
} else {
  // Measurement is offline
}
```