Adding javascriptresponse. This responsetype is a framework for problems that are entirely controlled by javascript and graded by Node.js on the server.

common/lib/capa/capa/javascript_problem_grader.js

@@ -0,0 +1,21 @@
+var importAll = function (modulePath) {
+  module = require(modulePath);
+  for(key in module){
+    global[key] = module[key];
+  }
+}
+
+importAll("xproblem");
+importAll("minimax.js");
+
+graderModulePath    = process.argv[2];
+submission          = JSON.parse(process.argv[3]);
+problemState        = JSON.parse(process.argv[4]);
+params              = JSON.parse(process.argv[5]);
+
+graderModule = require(graderModulePath);
+graderClass  = graderModule.graderClass;
+grader = new graderClass(submission, problemState, params);
+console.log(JSON.stringify(grader.grade()));
+console.log(JSON.stringify(grader.evaluation));
+console.log(JSON.stringify(grader.solution));