[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Debugger](./puppeteer.protocol.debugger.md) > [CallFrame](./puppeteer.protocol.debugger.callframe.md) ## Protocol.Debugger.CallFrame interface JavaScript call frame. Array of call frames form the call stack. Signature: ```typescript export interface CallFrame ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [callFrameId](./puppeteer.protocol.debugger.callframe.callframeid.md) | [CallFrameId](./puppeteer.protocol.debugger.callframeid.md) | Call frame identifier. This identifier is only valid while the virtual machine is paused. | | [functionLocation](./puppeteer.protocol.debugger.callframe.functionlocation.md) | [Location](./puppeteer.protocol.debugger.location.md) | Location in the source code. | | [functionName](./puppeteer.protocol.debugger.callframe.functionname.md) | string | Name of the JavaScript function called on this call frame. | | [location](./puppeteer.protocol.debugger.callframe.location.md) | [Location](./puppeteer.protocol.debugger.location.md) | Location in the source code. | | [returnValue](./puppeteer.protocol.debugger.callframe.returnvalue.md) | [Runtime.RemoteObject](./puppeteer.protocol.runtime.remoteobject.md) | The value being returned, if the function is at return point. | | [scopeChain](./puppeteer.protocol.debugger.callframe.scopechain.md) | [Scope](./puppeteer.protocol.debugger.scope.md)\[\] | Scope chain for this call frame. | | [this](./puppeteer.protocol.debugger.callframe.this.md) | [Runtime.RemoteObject](./puppeteer.protocol.runtime.remoteobject.md) | this object for this call frame. | | [url](./puppeteer.protocol.debugger.callframe.url.md) | string | JavaScript script name or url. |