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Bitwise expression can be simplified

Reports an expression that includes and with zero, or by zero, or shifting by zero. Such expressions may result from not fully completed automated refactorings.

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.

PointlessBitwiseExpressionJS
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 | Bitwise operation issues

Inspection ID: PointlessBitwiseExpressionJS

Inspection options

Here you can find the description of settings available for the Bitwise expression can be simplified inspection, and the reference of their default values.

Ignore named constant in determining pointless expressions

Option ID:

m_ignoreExpressionsContainingConstants

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 PointlessBitwiseExpressionJS

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

Last modified: 03 December 2025