Timer Decorator

A simple Promise-aware ES7 timer decorator. Just logs the processing time for the given function, or the time until the promise resolves (ignores rejected promises). Note that the promise itself adds ~35-40ms in my basic testing.

Installation

npm install --save-dev timer-decorator

Usage

import timer from 'timer-decorator';

class Foo {
  @timer
  myMethod() {
    // ...
  }
}

will log something like:

Foo[0].myMethod: 123.456ms

The [0] is the instance #.

Enable and Disable

To enable or disable the timer, call:

timer.enable(this);
timer.disable(this);

where this is the class instance.

Release

timer.release(this);

to release the object and allow for gc to clean it. Note that you probably shouldn't be using this in production anyway, so it's somewhat irrelevant if you don't do this (I'm just writing it for you to be aware that you will keep around every object that has a timer in memory, forever, if release isn't called).