puppeteer/website/versioned_docs/version-18.2.1/api/puppeteer.registercustomqueryhandler.md

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registerCustomQueryHandler

registerCustomQueryHandler() function

Registers a custom query handler.

Signature:

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

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/…');