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[@jupyterlite](../../../../../README.md) / [@jupyterlite/contents](../../../README.md) / [FILE](../README.md) / hasFormat

# Function: hasFormat()

> **hasFormat**(`ext`, `fileFormat`): `boolean`

Defined in: packages/services/lib/contents/tokens.d.ts:20

Determine whether the given extension matches a given fileFormat.

## Parameters

### ext

`string`

### fileFormat

`"json"` | `"text"` | `"base64"`

## Returns

`boolean`