History of Performance.now() Revision history for: English (US) Oct 18, 2016, 10:28:55 AM leewz Made lede hopefully more clear, and hopefully correct. Previous Aug 10, 2016, 1:50:27 PM jpmedley Previous Feb 28, 2016, 1:11:30 PM flimzy Previous Dec 10, 2015, 7:00:53 AM chrisdavidmills Previous Dec 9, 2015, 2:04:36 PM chrisdavidmills Previous Dec 3, 2015, 9:33:54 AM teoli Technical review completed. Previous Dec 3, 2015, 9:32:43 AM teoli Previous Dec 3, 2015, 9:31:47 AM teoli Previous Dec 3, 2015, 9:31:30 AM teoli Previous Dec 3, 2015, 8:48:16 AM Bonuspunkt typeof Performance.now === 'undefined' / typeof performance.now === 'function'