'when' has only 'else' branch and can be simplified

Reports when expressions with only an else branch that can be simplified.

Simplify expression quick-fix can be used to amend the code automatically.

Example:

  fun redundant() {
      val x = when { // <== redundant, the quick-fix simplifies the when expression to "val x = 1"
          else -> 1
      }
  }

Locating this inspection

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.

WhenWithOnlyElse

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 | Redundant constructs

Availability

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