how can I find an item in a list according to an I...
# getting-startedo
oday
03/30/2020, 2:51 PMhow can I find an item in a list according to an ID that I have, and then replace the item there with the object i have (whose ID i used to find its occurrence in the list)?
a
araqnid
03/30/2020, 2:55 PMif you iterate through the MutableList with a MutableIterator, then you can update the value through the iterator
o
oday
03/30/2020, 2:56 PMdoesnt this just need find and map?
oday
03/30/2020, 2:57 PM Copy code
val changedFilter = mutableFilterCategories.value?.find { it.categoryId == filterItem.categoryId }a
araqnid
03/30/2020, 2:58 PMfind and map will both produce copies of the list — if that’s what you want, go ahead. And you can probably combine that into a single map: someone posted a reply for that and then deleted it
araqnid
03/30/2020, 2:58 PMsth like
input.map { if (match(it)) replacement else it }o
oday
03/30/2020, 2:58 PMah right
oday
03/30/2020, 2:58 PMthe syntax inside the map got me
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