Size check can be replaced with 'isNotEmpty()'

Last modified: 03 December 2024

Reports size checks of Collections/Array/String that should be replaced with isNotEmpty().

Using isNotEmpty() makes your code simpler.

The quick-fix replaces the size check with isNotEmpty().

Example:

fun foo() {
    val arrayOf = arrayOf(1, 2, 3)
    arrayOf.size > 0
}

After the quick-fix is applied:

fun foo() {
    val arrayOf = arrayOf(1, 2, 3)
    arrayOf.isNotEmpty()
}

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.

ReplaceSizeCheckWithIsNotEmpty
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 2024.3, Qodana for JVM 2024.3,

Can be installed with plugin:

Kotlin, 243.23126-IJ