<!-- Do not edit this file. It is automatically generated by API Documenter. --> [Home](./index.md) > [puppeteer](./puppeteer.md) > [EvaluateFn](./puppeteer.evaluatefn.md) ## EvaluateFn type <b>Signature:</b> ```typescript export declare type EvaluateFn<T = unknown> = string | ((arg1: T, ...args: unknown[]) => unknown); ```