i didn’t understand this code can anyone explain:

by

This will return a boolean (true or false) based on a number of conditions.

If the startDate variable is not a number, it’ll return true, otherwise that first part of the condition will evaluate to false, in which case it’ll continue to the part after the ||

So if startDate IS a number, then it will return either true or false based on the second clause in the condition (expense.createdAt >= startDate)

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