Why Using Kotlin Instead of JavaScript The first advantage is that you can use Kotlin for everything . You can create a web service and desktop application targeting the JVM and the corresponding web client targeting JavaScript. The second one is that JavaScript is not a good language for developing large applications.
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When talking about Kotlin and Java, both are good. But Kotlin, again, gives much more opportunities . Kotlin-JS gives you browser applications, Kotlin-Native allows to compile to native application (and interop with them).
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