Scope function with nested forEach can be simplified

Reports forEach functions in the scope functions such as also or apply that can be simplified.

Convert forEach call to onEach quick-fix can be used to amend the code automatically.

Examples:

  fun test(list: List<Int>) {
      val x = list.also { it.forEach { it + 4 } }.toString()
      val y = list.apply { forEach { println(it) } }
  }

After the quick-fix is applied:

  fun test(list: List<Int>) {
      val x = list.onEach { it + 4 }.toString()
      val y = list.onEach { println(it) }
  }

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.

SimplifyNestedEachInScopeFunction

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

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.2, Qodana for JVM 2024.2,
Can be installed with plugin:	Kotlin, 242.22892-IJ

Last modified: 11 September 2024