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kotlinlang

what’s a kotliny way of using `find` to find the one and only item in a list where I know there is no repetition with, according to its ID?

That returns the item that matches and throws an exception if there is 0 or more than one that match

everytime i think i got it, i miss another thing :stuck_out_tongue:

There is also `singleOrNull` if you want `null` in case no item matches

to ensure an item exists, i would use this then `if (leaseCars.singleOrNull { it.id == listingId } != null)`

that would check that a singular item with that ID exists, yes.

That won't throw an exception if multiple items have the same ID though, it will give you null.