[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [GlobalLexicalScopeNamesRequest](./puppeteer.protocol.runtime.globallexicalscopenamesrequest.md) > [executionContextId](./puppeteer.protocol.runtime.globallexicalscopenamesrequest.executioncontextid.md) ## Protocol.Runtime.GlobalLexicalScopeNamesRequest.executionContextId property Specifies in which execution context to lookup global scope variables. Signature: ```typescript executionContextId?: ExecutionContextId; ```