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'var' is used instead of 'let' or 'const'

Reports a var declaration that is used instead of let or const.

Both let and const are block-scoped and behave more strictly.

Suggests replacing all var declarations with let or const declarations, depending on the semantics of a particular value. The declarations may be moved to the top of the function or placed before the first usage of the variable to avoid Reference errors.

Select the 'Conservatively convert var with Fix all action' option to prevent any changes in these complex cases when using the 'Fix all' action.

Inspection options




Conservatively convert var with Fix all action



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


JavaScript and TypeScript, 233.SNAPSHOT

Last modified: 13 July 2023