getLineNumber

gistfile1.js

// http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi

function customPrepareStackTrace(error, structuredStackTrace) {
  return structuredStackTrace[0].getLineNumber();
};
function getLineNumber() {
  var original = Error.prepareStackTrace;
  Error.prepareStackTrace = customPrepareStackTrace;
  var error = {};
  Error.captureStackTrace(error, getLineNumber);
  var lineNumber = error.stack;
  Error.prepareStackTrace = original;
  return lineNumber;
}