open fun <S> then(onFulfilled: (T) -> S): Promise<S>
Platform and version requirements: JS
open fun <S> then( onFulfilled: (T) -> S, onRejected: (Throwable) -> S ): Promise<S>
Platform and version requirements: JS
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.js/-promise/then.html