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Home > puppeteer > WebWorker > evaluateHandle
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<HandlerType extends JSHandle = JSHandle>(pageFunction: EvaluateHandleFn, ...args: SerializableOrJSHandle[]): Promise<JSHandle>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| pageFunction | EvaluateHandleFn | Function to be evaluated in the page context. |
| args | SerializableOrJSHandle[] | Arguments to pass to pageFunction. |
Returns:
Promise<JSHandle>
Promise which resolves to the return value of pageFunction.