[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [CallFrame](./puppeteer.protocol.runtime.callframe.md) > [functionName](./puppeteer.protocol.runtime.callframe.functionname.md) ## Protocol.Runtime.CallFrame.functionName property JavaScript function name. Signature: ```typescript functionName: string; ```