adding and removing items from immutablelist

[fred-bowker]

The documentation for adding and removing items from immutablelist is unclear:

From the docs
Note: you need to import these operators from kotlinx.collections.immutable package in order for them to take the precedence over the ones from the standard library.

import kotlinx.collections.immutable.*

A lot of people don't use * in there imports and instead use the actual import, can the documentation be updated to reflect this.

Currently if i use + or - on an immutableList I get returned a List not an immutableList. it would be good if the documentation could be updated to show how I can use + or - to return an ImmutableList

Oh and thanks for creating this library :)

[Goooler]

import kotlinx.collections.immutable.plus
import kotlinx.collections.immutable.minus
import kotlinx.collections.immutable.persistentListOf

@Test fun plus() {
    val list1 = persistentListOf(1, 2, 3)
    val list2 = persistentListOf(4, 5, 6)
    val list3: PersistentList<Int> = list1 + list2
    val list4: PersistentList<Int> = list3 - list2
    compareLists(list1, list4)
}

[qurbonzoda]

Related #10