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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

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.

JSVoidFunctionReturnValueUsed
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 | JavaScript and TypeScript | Probable bugs

Last modified: 03 December 2024