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Void function return value used

Reports a return value of a function that doesn't return anything. Calling of such functions always produces an undefined value and such assignment may indicate an error.

Example:

let a = console.log('foo');

The following usages are ignored:

  • Inside a return statement

  • In some binary operations

  • For overridden non-void functions

Inspection Details

Available in:

AppCode 2023.3, CLion 2023.3, GoLand 2023.3, IntelliJ IDEA 2023.3, JetBrains Rider 2023.1, PhpStorm 2023.3, PyCharm 2023.3, Qodana for .NET 2023.1, Qodana for JS 2023.3, Qodana for JVM 2023.3, Qodana for PHP 2023.3, Qodana for Ruby 2023.3, RubyMine 2023.3, WebStorm 2023.3

Plugin:

JavaScript and TypeScript, 233.SNAPSHOT

Last modified: 13 July 2023