Added the underscore node_module.

node_modules/underscore/cjs/invoke.js

@@ -0,0 +1,30 @@
+var restArguments = require('./restArguments.js');
+var isFunction = require('./isFunction.js');
+var map = require('./map.js');
+var _deepGet = require('./_deepGet.js');
+var _toPath = require('./_toPath.js');
+
+// Invoke a method (with arguments) on every item in a collection.
+var invoke = restArguments(function(obj, path, args) {
+  var contextPath, func;
+  if (isFunction(path)) {
+    func = path;
+  } else {
+    path = _toPath(path);
+    contextPath = path.slice(0, -1);
+    path = path[path.length - 1];
+  }
+  return map(obj, function(context) {
+    var method = func;
+    if (!method) {
+      if (contextPath && contextPath.length) {
+        context = _deepGet(context, contextPath);
+      }
+      if (context == null) return void 0;
+      method = context[path];
+    }
+    return method == null ? method : method.apply(context, args);
+  });
+});
+
+module.exports = invoke;