'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.
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.
ES6ConvertVarToLetConst- 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.
Inspection options
Here you can find the description of settings available for the 'var' is used instead of 'let' or 'const' inspection, and the reference of their default values.
- Conservatively convert var with Fix all action
Default: Selected
Availability
- By default bundled with
CLion 2024.1, GoLand 2024.1, IntelliJ IDEA 2024.1, JetBrains Rider 2023.3, PhpStorm 2024.1, PyCharm 2024.1, Qodana for .NET 2023.3, Qodana for Go 2024.1, Qodana for JS 2024.1, Qodana for JVM 2024.1, Qodana for PHP 2024.1, Qodana for Ruby 2024.1, RubyMine 2024.1, WebStorm 2024.1
- Can be installed with plugin
JavaScript and TypeScript, 241.18072