puppeteer/docs/api/puppeteer.realm.evaluatehandle.md

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Realm.evaluateHandle

Realm.evaluateHandle() method

Evaluates a function in the realm's context and returns a JSHandle to the result.

If the function passed to realm.evaluateHandle returns a Promise, the method will wait for the promise to resolve and return its value.

JSHandle instances can be passed as arguments to the function.

Signature

class Realm {
  abstract evaluateHandle<
    Params extends unknown[],
    Func extends EvaluateFunc<Params> = EvaluateFunc<Params>,
  >(
    pageFunction: Func | string,
    ...args: Params
  ): Promise<HandleFor<Awaited<ReturnType<Func>>>>;
}

Parameters

Parameter	Type	Description
pageFunction	Func | string	A function to be evaluated in the realm.
args	Params	Arguments to be passed to the pageFunction.

Returns:

Promise<HandleFor<Awaited<ReturnType<Func>>>>

A promise that resolves to a JSHandle containing the result.

Example

const aHandle = await realm.evaluateHandle(() => document.body);
const resultHandle = await realm.evaluateHandle(
  body => body.innerHTML,
  aHandle,
);