Suspicious 'asDynamic' member invocation

Reports usages of asDynamic function on a receiver of dynamic type.

asDynamic function has no effect for expressions of dynamic type.

asDynamic function on a receiver of dynamic type can lead to runtime problems because asDynamic will be executed in JavaScript environment, and such function may not be present at runtime. The intended way is to use this function on usual Kotlin type.

Remove "asDynamic" invocation quick-fix can be used to amend the code automatically.

Example:

  fun wrongUsage(d: Dynamic) {
     d.asDynamic().foo() // <== redundant, quick-fix simplifies the call expression to "d.foo()"
  }

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.

SuspiciousAsDynamic

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 | Kotlin | Style issues

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 SuspiciousAsDynamic

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

IntelliJ IDEA 2025.2

Inspection Details
By default bundled with:	IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025