Node.JS print filename and line number prefixed to console log output

trace.js

const path = require('path');

function trace(s) {
    const orig = Error.prepareStackTrace;
    Error.prepareStackTrace = (_, stack) => stack;
    const err = new Error();
    Error.captureStackTrace(err, arguments.callee);
    Error.prepareStackTrace = orig;
    const callee = err.stack[0];
    process.stdout.write(`${path.relative(process.cwd(), callee.getFileName())}:${callee.getLineNumber()}: ${s}\n`);
}
module.exports = trace;

trace("hey");

a workaround without using arguments.callee, which is now deprecated :

const orig = Error.prepareStackTrace;
Error.prepareStackTrace = (_, stack) => stack;
const err = new Error();
Error.captureStackTrace(err, global);
const callee = err.stack[1];
Error.prepareStackTrace = orig;

const callerFile = path.relative(process.cwd(), callee.getFileName());
const callerLine = callee.getLineNumber();

https://gist.github.com/mikesmullin/008721d4753d3e0d9a95cda617874736#gistcomment-3254092