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Library function call could be simplified

Reports library function calls which could be replaced by simplified one.

Using corresponding functions makes your code simpler.

The quick-fix replaces the function calls with another one.


fun test(list: List<Any>) { list.filter { it is String } }

After the quick-fix is applied:

fun test(list: List<Any>) { list.filterIsInstance<String>() }

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Kotlin | Style issues


By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Kotlin, 241.18072-IJ

Last modified: 18 June 2024