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Mismatched query and update of collection

Reports a collection of fields or variables whose contents are either queried and not updated or updated and not queried. Such mismatched queries and updates are pointless and may indicate either dead code or a typographical error.

Query methods are automatically detected, based on whether they return something, or a callback is passed to them. Use the table below to specify which methods are update methods.

Inspection options




Update method names


[pop, push, shift, splice, unshift, add, insert, remove, reverse, copyWithin, fill, sort]

Inspection Details

Available in:

AppCode 2023.3, CLion 2023.3, GoLand 2023.3, IntelliJ IDEA 2023.3, JetBrains Rider 2023.1, PhpStorm 2023.3, PyCharm 2023.3, Qodana for .NET 2023.1, Qodana for JS 2023.3, Qodana for JVM 2023.3, Qodana for PHP 2023.3, Qodana for Ruby 2023.3, RubyMine 2023.3, WebStorm 2023.3


JavaScript and TypeScript, 233.SNAPSHOT

Last modified: 13 July 2023