Kotlin
Collection count can be converted to size
Info
New
Last modified: 03 December 2024 Reports calls to Collection<T>.count()
.
This function call can be replaced with .size
.
.size
form ensures that the operation is O(1) and won't allocate extra objects, whereas count()
could be confused with Iterable<T>.count()
, which is O(n) and allocating.
Example:
fun foo() {
var list = listOf(1,2,3)
list.count() // replaceable 'count()'
}
After the quick-fix is applied:
fun foo() {
var list = listOf(1,2,3)
list.size
}
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
ReplaceCollectionCountWithSize
Inspection Details | |
---|---|
By default bundled with: | |
Can be installed with plugin: | Kotlin, 243.23126-IJ |
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