JavaScript Linters
IntelliJ IDEA integrates with most popular JavaScript code linters that detect problems in your code without executing it. When installed and enabled, a linter activates automatically every time you open a JavaScript file and reports detected errors and warnings in the editor.
To view a problem description
Hover the mouse pointer over the highlighted problem in the editor. IntelliJ IDEA shows a tooltip where the problem is reported.
To apply a quick-fix
Press Alt+Enter and choose the relevant suggestion from the list.
Last modified: 1 February 2019