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javascriptjavaarraysnashorn

Nashorn gives error with Array.from(string)

I have a javascript file fun.js

function fun1(){
    var str='apple';
    var charArray = Array.from(str);
    return charArray;
}

I return this charArray to my java code using nashorn. But nashorn gives exception as-

javax.script.ScriptException: TypeError: Array.from is not a function in at line number 25

How can I use Array.from() with nashorn or is there any way to convert string to charArray in js which is compatible with nashorn.

my java code is -

    System.out.println("intialising parser....");

    ScriptEngine engine= new ScriptEngineManager().getEngineByName("nashorn");

    engine.eval(new FileReader("index.js"));
    Invocable invocable= (Invocable) engine;

    Object obj = (Object)invocable.invokeFunction("fun1");
Solution

  • Later I found it was simple like this-

    function fun1(){
var str='apple';
var charArray =str.split('');
return charArray;
}

    Also it is compatible with nashorn.