39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
---
|
|
sidebar_label: registerCustomQueryHandler
|
|
---
|
|
|
|
# registerCustomQueryHandler() function
|
|
|
|
Registers a [custom query handler](./puppeteer.customqueryhandler.md).
|
|
|
|
**Signature:**
|
|
|
|
```typescript
|
|
export declare function registerCustomQueryHandler(
|
|
name: string,
|
|
handler: CustomQueryHandler
|
|
): void;
|
|
```
|
|
|
|
## Parameters
|
|
|
|
| Parameter | Type | Description |
|
|
| --------- | ------------------------------------------------------- | ---------------------------------------------------------------- |
|
|
| name | string | The name that the custom query handler will be registered under. |
|
|
| handler | [CustomQueryHandler](./puppeteer.customqueryhandler.md) | |
|
|
|
|
**Returns:**
|
|
|
|
void
|
|
|
|
## Remarks
|
|
|
|
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.
|
|
|
|
## Example
|
|
|
|
```
|
|
puppeteer.registerCustomQueryHandler('text', { … });
|
|
const aHandle = await page.$('text/…');
|
|
```
|