JsQualifier(value: String)

Adds prefix to external declarations in a source file.

JavaScript does not have concept of packages (namespaces). They are usually emulated by nested objects. The compiler turns references to external declarations either to plain unprefixed names (in case of plain modules) or to plain imports. However, if a JavaScript library provides its declarations in packages, you won't be satisfied with this. You can tell the compiler to generate additional prefix before references to external declarations using the @JsQualifier(...) annotation.

Note that a file marked with the @JsQualifier(...) annotation can't contain non-external declarations.

Example:

@file:JsQualifier("my.jsPackageName")
package some.kotlinPackage

external fun foo(x: Int)

external fun bar(): String