Yet another stopwatch for performance tests.

var stopwatch = require('yastopwatch');

stopwatch.start();
stopwatch.lap('first');
stopwatch.lap('second');
stopwatch.stop();

// print report to console
console.log(stopwatch.report());

The default report looks like this:

yastopwatch report:
start > first 	 costs: 1ms
first > second 	 costs: 5ms
second > stop 	 costs: 10ms

If you are unsatisfied with the default report, you can always define one yourself.

var stopwatch = require('yastopwatch');

stopwatch.reportHandler = function (records) {
  var report = '';

  report += 'my report:\n';

  var i;
  for (i = 0; i < records.length; i++) {
    if (i !== 0) {
      var lastRecord = records[i - 1];
      var currentRecord = records[i];

      report += lastRecord.title + ' - ' + currentRecord.title +
        (currentRecord.time - lastRecord.time) + 'ms\n';
    }
  }

  return report;
};

The MIT License (MIT)

Copyright (c) <2014>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.