How does shortid ensure uniqueness across restarts?

[Ne0nx3r0]

I noted this line "Apps can be restarted any number of times without any chance of repeating an id."

I can't seem to sort out how this is accomplished. How does shortid ensure uniqueness with the same settings across restarts?

[irfaan]

#58 (comment)

[ai]

There is no insurance in any random ID generator. The same problem in UUID 4.

Just use bigger ID size, to reduce the probability of collision. I recommend to check Nano ID since it has lower collision probability.