WebWorker.evaluate() method
If the function passed to the worker.evaluate returns a Promise, then worker.evaluate would wait for the promise to resolve and return its value. If the function passed to the worker.evaluate returns a non-serializable value, then worker.evaluate resolves to undefined. DevTools Protocol also supports transferring some additional values that are not serializable by JSON: -0, NaN, Infinity, -Infinity, and bigint literals. Shortcut for await worker.executionContext()).evaluate(pageFunction, ...args).
Signature:
evaluate<Params extends unknown[], Func extends EvaluateFunc<Params> = EvaluateFunc<Params>>(pageFunction: Func | string, ...args: Params): Promise<Awaited<ReturnType<Func>>>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| pageFunction | Func | string | Function to be evaluated in the worker context. |
| args | Params | Arguments to pass to pageFunction. |
Returns:
Promise<Awaited<ReturnType<Func>>>
Promise which resolves to the return value of pageFunction.