How to get console.log line numbers shown in Nodejs?

Question

Got an old application, that prints out quite a lot of messages using console.log, but I just can not find in which files and lines console.log is

Answer 1

Slightly modified version of noppa's answer, this version will output something like:

/file/in-which/console/is/called.js:75:23
 The stuff you want to log.

This is clean and convenient (especially for use in VSCode - which will turn the file path into a link).

const { log } = console;
function proxiedLog(...args) {
  const line = (((new Error('log'))
    .stack.split('\n')[2] || '…')
    .match(/\(([^)]+)\)/) || [, 'not found'])[1];
  log.call(console, `${line}\n`, ...args);
}
console.info = proxiedLog;
console.log = proxiedLog;

// test
console.log('Hello!');

The snippet will only work well in a NodeJS environment…