39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
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---
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sidebar_label: registerCustomQueryHandler
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---
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# registerCustomQueryHandler() function
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Registers a [custom query handler](./puppeteer.customqueryhandler.md).
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**Signature:**
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```typescript
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export declare function registerCustomQueryHandler(
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name: string,
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handler: CustomQueryHandler
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): void;
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```
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## Parameters
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| Parameter | Type | Description |
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| --------- | ------------------------------------------------------- | ---------------------------------------------------------------- |
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| name | string | The name that the custom query handler will be registered under. |
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| handler | [CustomQueryHandler](./puppeteer.customqueryhandler.md) | |
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**Returns:**
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void
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## Remarks
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After registration, the handler can be used everywhere where a selector is expected by prepending the selection string with `<name>/`. The name is only allowed to consist of lower- and upper case latin letters.
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## Example
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```
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puppeteer.registerCustomQueryHandler('text', { … });
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const aHandle = await page.$('text/…');
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```
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