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