[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Runtime](./puppeteer.protocol.runtime.md) > [ExceptionDetails](./puppeteer.protocol.runtime.exceptiondetails.md) > [lineNumber](./puppeteer.protocol.runtime.exceptiondetails.linenumber.md) ## Protocol.Runtime.ExceptionDetails.lineNumber property Line number of the exception location (0-based). Signature: ```typescript lineNumber: integer; ```