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Unused 'catch' parameter

Reports a catch parameter that is not used in the corresponding block. The catch parameters named ignore or ignored are ignored.

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.

UnusedCatchParameterJS
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 | Try statement issues

Use the checkbox below to disable this inspection for catch blocks with comments.

Inspection ID: UnusedCatchParameterJS

Inspection options

Here you can find the description of settings available for the Unused 'catch' parameter inspection, and the reference of their default values.

Ignore catch blocks containing comments

Option ID:

m_ignoreCatchBlocksWithComments

Default value:

Not selected

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection UnusedCatchParameterJS

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Last modified: 18 September 2025