Max unique time range?

[zhaoyao91]

As I understood, given fixed seed, workerId, the generated ids are unique, so the only thing that decides which id to generate is the time. However, the combinations are limited, so the uniqueness could only be ensured within some time range. If I keep generating ids over that time range, I must enter another loop and get duplicated ids.

Is that right? what's the max time range this package guarantee?

[mcchin]

Not sure if this answer your concern, but by looking at the codes, seems like you need to do this every year to keep the uniqueness?

// Ignore all milliseconds before a certain time to reduce the size of the date entropy without sacrificing uniqueness.
// This number should be updated every year or so to keep the generated id short.
// To regenerate `new Date() - 0` and bump the version. Always bump the version!
var REDUCE_TIME = 1459707606518;

The codes is from here https://github.com/dylang/shortid/blob/master/lib/build.js

[ai]

Yeap, to using just hardware random generator is much safer way. Use Nano ID.