Simplified high resolution timing
npm install time-span> Simplified high resolution timing
Uses process.hrtime in Node.js and performance.now in browsers (accurate to 5 microseconds).
```
$ npm install time-span
`js
import timeSpan from 'time-span';
const end = timeSpan();
timeConsumingFn();
console.log(end());
//=> 1745.3186
console.log(end.rounded());
//=> 1745
console.log(end.seconds());
//=> 1.7453186
``
Returns a function, that when called, returns the time difference.
#### end()
Elapsed milliseconds.
#### end.rounded()
Elapsed milliseconds rounded.
#### end.seconds()
Elapsed seconds.
#### end.nanoseconds()
Elapsed nanoseconds.