Jaskell is a functional scripting programming language that runs in the Java Virtual Machine. The term Jaskell stands for Java-Haskell. There are already a lot of many different scripting languages in JVM, such as Jython and JRuby. There are many functions including higher-order function, function carrying, string interpolation etc.
Jaskell has many different features. One of the main functional aspects of Jaskell is that is based on Object-Oriented functional programming but it brings combinators to Java. Jaskell also brings with high order functions, function currying, and different combinatory supports. Jaskell in a sense is a Java library that passes Java objects in and out of the Java interpreter.
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Jaskell Wikipedia(Text) CC BY-SA