Get the wrapping function name in Javascript

Question

How can I get the wrapping function name of my code? I want to implement a runtime-tracking feature in many functions of my project and don't want to replace the function name in every function by myself.

function my_function_name() {
  let t0 = performance.now();
  ....
  DEBUG_TRACK_RUNTIME(performance.now() - t0)
}

function DEBUG_TRACK_RUNTIME(runtime) {
  console.log("PROCESS RUNTIME: " + this.caller, Math.round(runtime, 0) + " ms")
}

Is there a way to get the function name "my_function_name()" as a string?

QUESTION ANSWERED. This solution worked great for me. Thanks

function abcd() {
    let t0 = performance.now();
    ...
    DEBUG_TRACK_RUNTIME(arguments.callee.name, performance.now() - t0)
}

function DEBUG_TRACK_RUNTIME(title, runtime) {
    console.log("PROCESS RUNTIME: " + title + "()", Math.round(runtime, 0) + " ms")
}

duplicate: [Get function name in JavaScript](https://stackoverflow.com/questions/3178892/get-function-name-in-javascript) — szaman, Feb 23 '21 at 18:23
Maybe you should not build complex generic reusable features based on `arguments.callee`. It won't work in strict mode. In modern browsers JS code is always run in strict mode in modules and class declarations. — Teemu, Feb 24 '21 at 09:23

score 1 · Answer 1 · answered Feb 23 '21 at 18:21

1

Use arguments.calle.name:

function my_function_name() {
  console.log(arguments.callee.name);
}

my_function_name();

answered Feb 23 '21 at 18:21

Scott Marcus

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Won't work in strict mode, though. – Teemu Feb 23 '21 at 18:22
Is there a proper way? – gear Feb 24 '21 at 00:12

Get the wrapping function name in Javascript

1 Answers1