Rhino FAQ

From MDC

Frequently Asked Questions about Rhino

[edit] How do I create a Java array from JavaScript?

You must use Java reflection. For instance, to create an array of java.lang.String of length five, do

var stringArray = java.lang.reflect.Array.newInstance(java.lang.String, 5);

Then if you wish to assign the string "hi" to the first element, simply execute stringArray[0] = "hi". Creating arrays of primitive types is slightly different: you must use the TYPE field. For example, creating an array of seven ints can be done with the code

var intArray = java.lang.reflect.Array.newInstance(java.lang.Integer.TYPE, 7);

[edit] When I try to execute a script I get the exception Required security context missing. What's going on?

You've likely missed placing the Security.properties file in your class path at org.mozilla.javascript.resources.