performance

Performance

Provides a cross-browser safe way to use the Navigation Timing API.

Performance/now

Ported from Bazaarvoice internal code and based on a Paul Irish polyfill.

Usage

var perfNow = require('performance/now.js');

var timing = perfNow.now();

Notes

This is not a true polyfill in browsers that do not implement the Navigation Timing API. Rather than returning the time elapsed since navigationStart, it will return the time elapsed since the polyfill was installed.

Performance/mark

Also ported from Bazaarvoice internal code.

Usage

var perfMark = require('performance/mark.js');

perfMark.mark('mark-name');