Scripting using Javascript. Since 4.1.0. This is server based scripting using Javascript - not to be confused with client side (browser) Javascript use.

{javascript}
var v = new java.lang.Runnable() {
    run: function() { print('This is some test data.'); }
};
v.run();
{javascript}

{javascript:output=wiki|script=^my.js|showCode=true}
{javascript}