JavaScript function displayName

1-test.js

var f = function() {
  throw new Error('oops');
};

f.displayName = 'myfunc';

f();

2-log.txt

$ node -v
v0.10.24
$ node test.js

test.js:2
  throw new Error('oops');
        ^
Error: oops
    at f (test.js:2:9)
    at Object.<anonymous> (test.js:7:1)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:902:3

try {
  var f = function() {
    throw new Error('oops');
  };

  f.displayName = 'myfunc';

  f();
} catch(e) {
  console.log(e.stack);
}

output:

Error: oops
    at f (<anonymous>:4:11)
    at <anonymous>:9:3
    at Object.InjectedScript._evaluateOn (<anonymous>:603:39)
    at Object.InjectedScript._evaluateAndWrap (<anonymous>:562:52)
    at Object.InjectedScript.evaluate (<anonymous>:481:21)