Get current time in microseconds (cross-environment)
npm install microtime-xReturns the number of microseconds elapsed since 1 January 1970 00:00:00 UTC
In browser relies on performance.now or it's engine specific variant if available, in Node.js microtime by Wade Simmons is used (if supported). If none of the mentioned works then Date.now() result multiplied by 1000 is returned
In your project path:
$ npm install microtime-x
You can easily bundle npm packages for browser with modules-webmake
$ npm test