WebWorker.evaluateHandle() method

The only difference between worker.evaluate and worker.evaluateHandle is that worker.evaluateHandle returns in-page object (JSHandle). If the function passed to the worker.evaluateHandle returns a Promise, then worker.evaluateHandle would wait for the promise to resolve and return its value. Shortcut for await worker.executionContext()).evaluateHandle(pageFunction, ...args)

Signature:

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	Function to be evaluated in the page context.
args	Params	Arguments to pass to pageFunction.

Returns:

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

Promise which resolves to the return value of pageFunction.