kotlin-js/js.promise/PromiseLike/then

then

abstract fun <R : JsAny?> then(onFulfilled: (T) -> R): PromiseLike<R>(source)
abstract fun <R : JsAny?> then(onFulfilled: (T) -> R, onRejected: (JsErrorLike?) -> R): PromiseLike<R>(source)