firebase - Chances of Push ID duplication -


i know, know. push id unique , have least chance of duplicating node.

but i'm curious, there chance unique id have duplicated one, if so, generate unique id , on?

i know kind of dumb question, i'm curious.

no ! push id generate unique id everytime , it's uniqueness can guaranteed because firebase generates unique id using many unique paramaters such time. time unique every mili second unique id, , not time there many deciding factors internally ensures uniqueness. there me not chance can generate duplicate uid, if somehow forcefully make happen again unique next time.


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