Timeance.js

Abstract library for track loadtimes < 600 bytes

Features

• Access to window.performance data
• Track custom events
• Measure how long a portion of code can take to be executed

Install

npm install timeance

Examples

Simple

Usage

Timeance provide a easy API.

measure(event)

This method help you trace javascript performance and measure how long a portion of code can take to be executed. You give each timer a id(String or Object) and when you want to end the measurement, you have call the returned function, the method will output the time, in milliseconds, that elapsed since the timer was started.

Example:

var timeTrack = Timeance.measure('test_track');
setTimeout(function() {
  timeTrack(function(event, time) {
    console.log(event); // 'test_track'
    console.log(time); // 1500
  });
}, 1500);

Example:

var timeTrack = Timeance.measure({call: 'get_user_info'});
fetch('user/me', function() {
  ...
  timeTrack();
});

Example:

Loging the response in GA in order to storage metrics.

var timeTrack = Timeance.measure('each_items');
for (var i = thousands_items.length - 1; i >= 0; i--) {
  ...
};
timeTrack(function(event, time) {
	ga('event', event, time);
})

event(info)

This method records a point during execution and return

Timeance.event('lister-two');
Timeance.event({id: 'lister-two'});

end(callback, wait)

End the currend record of information and obtain de data. If wait is true, the end method will wait to window.load will fired.

Timeance.end(function(response) {
  console.log(response);
});

Licence

MIT