# headerName

User-facing column heading. Can differ from the source data key.

Canonical: https://grid.syidax.com/docs/columns/headerName/

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## What does this API do?

User-facing column heading. Can differ from the source data key.

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## Exact input and result types

```typescript
headerName?: string
```

| Item | Value |
| --- | --- |
| Required | Optional |
| Input type | string |

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## Usage flow

Set this on an individual column object in columnDefs. Pass arrays, objects, and callbacks through JavaScript, and use new arrays or objects when applying changes.

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## Feature explanations and examples

- [Data updates](https://grid.syidax.com/docs/features/data-updates.md) — Replace rowData when receiving a complete query result. For partial changes, pass add, update, and remove to applyTransaction. Updates match through getRowId, not display positions.