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pezkuwi-ui/docs/ui-util/modules/_istestchain_.md
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2019-02-27 10:22:45 +00:00

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# Functions
<a id="istestchain"></a>
## isTestChain
**isTestChain**(chain?: *`string` \| `null`*): `boolean`
*Defined in [isTestChain.ts:7](https://github.com/polkadot-js/ui/blob/28b991d/packages/ui-util/src/isTestChain.ts#L7)*
**Parameters:**
| Name | Type |
| ------ | ------ |
| `Optional` chain | `string` \| `null` |
**Returns:** `boolean`
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