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Unneeded last comma in array literal

Reports a usage of a trailing comma in an array literal.

The warning is reported only when the JavaScript language version is set to ECMAScript 5.1.

Although trailing commas in arrays are allowed by the specification, some browsers may throw an error when a trailing comma is used.

You can configure formatting options for trailing commas in Code Style | JavaScript or TypeScript | Punctuation.

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.

JSLastCommaInArrayLiteral
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 | General

Last modified: 11 September 2024