docs/api/puppeteer.webworker.evaluatehandle.md
Evaluates a given function in the worker.
class WebWorker {
evaluateHandle<
Params extends unknown[],
Func extends EvaluateFunc<Params> = EvaluateFunc<Params>,
>(
func: Func | string,
...args: Params
): Promise<HandleFor<Awaited<ReturnType<Func>>>>;
}
Parameter
</th><th>Type
</th><th>Description
</th></tr></thead> <tbody><tr><td>func
</td><td>Func | string
</td><td>Function to be evaluated.
</td></tr> <tr><td>args
</td><td>Params
</td><td>Arguments to pass into func.
Returns:
Promise<HandleFor<Awaited<ReturnType<Func>>>>
A handle to the return value of func.
If the given function returns a promise, evaluate will wait for the promise to resolve.
In general, you should use evaluateHandle if evaluate cannot serialize the return value properly or you need a mutable handle to the return object.