44402b75a0
* feat(new-docs): add TSDoc comments to `WebWorker` Co-authored-by: martinsplitt <martin@geekonaut.de>
1.3 KiB
1.3 KiB
Home > puppeteer > WebWorker > evaluate
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<ReturnType extends any>(pageFunction: Function | string, ...args: any[]): Promise<ReturnType>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| pageFunction | Function | string | Function to be evaluated in the worker context. |
| args | any[] | Arguments to pass to pageFunction. |
Returns:
Promise<ReturnType>
Promise which resolves to the return value of pageFunction.