stampy

readme.md

Usage

Stampy is used to log time differences. You could use it to profile time-consuming operations.

Note that the first .log() begins the starting timestamp. Consecutive .log() just prints the diff from the last timestamp.

var stampy = require('stampy');
var userStampy = new stampy({ mute: process.env === 'production' || config.g.enableTimestamps });

userStampy.log('Recording timestamps now');

db.user.findById(45, function(err, user) {
  userStampy.log('User lookup');
});

prints the following

Recording timestamps now
User lookup - 127ms

stampy.js

// Simple app timestamping 
var stampy = function(opts) {
  opts = opts || {};
  this.mute = opts.mute;
};

stampy.prototype.log = function(description) {
  if (this.mute ) return;

  if (!this.timestamp) {
    this.timestamp = new Date();
    console.log(description);
    return;
  }

  var now = new Date();
  var diff = now - this.timestamp;
  this.timestamp = now;
  console.log(description + ' - ' + diff + 'ms');
}

stampy.prototype.reset = function() {
  this.timestamp = null;
}