那麼如何在JavaScript中使用抽象工廠方法?例如在Java中: public abstract class SuperClass {
abstract String bar();
public String foo() {
return bar();
}
}
public class SubClass extends SuperClass{
我無法在spark-shell repl中的代碼下運行。這是Scala cookbook example provided by Alvin Alexander 再現我的錯誤: <console>:22: error: reference to Animal is ambiguous;
it is imported twice in the same scope by
import $VAL1