[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [EvaluateRequest](./puppeteer.protocol.runtime.evaluaterequest.md) > [returnByValue](./puppeteer.protocol.runtime.evaluaterequest.returnbyvalue.md) ## Protocol.Runtime.EvaluateRequest.returnByValue property Whether the result is expected to be a JSON object that should be sent by value. Signature: ```typescript returnByValue?: boolean; ```