You might want this if you want to mutate the original list. `.map()` creates a copy of the original...

# getting-started

[Evan R.]

You might want this if you want to mutate the original list. .map() creates a copy of the original list

Untitled

[oday]

it makes sense, but it’s weird that I get this ..I tried to make it mutable list, same

https://i.imgur.com/UaqMvEv.jpg▾

[oday]

lol, if I say I want to use set() and then do the IDE suggestion and make it go back to above, it stops complaining

[Matias Reparaz]

Probably it's changing the list for a mutableList

[oday]

yes it was

[oday]

ok so if I grab the item again through `

it.items.toMutableList()[searchMatchIdx].toggled

it’s still false

[oday]

I think I settled on this and it was a mistake, to place toMutableList() here
`

it.items.toMutableList()[searchMatchIdx] =
    it.items[searchMatchIdx].copy(toggled = true)

[oday]

yea thats wrong

[Matias Reparaz]

it's the order of the list important? if not you can do

val elem = it.items.first { ..condition.. }
val list = (it.items - elem) + elem.copy(toggled = true)

[Evan R.]

toMutableList() also makes a copy of the original list. You should define the original list as mutable if you want to mutate it.