Split Function - Rows With Extra Commas

I am inserting fields from a .csv file into database using integration engine (rhapsody) there is a javascript filter where I am trying to catch rows that have extra commas in the field text. Tried using the following code but the rows with extra commas just error and don't get inserted.

// Loop through all the input messages
for (var i = 0; i < input.length; i++) {
var next = output.append(input[i]);
// Get the body of the current input message
var body = input[i].text;
// Set the body
next.text = body;
var name =next.getProperty("BaseFilename");
var fields = name;
var fieldsList = fields.split(/s*,s*/);
if (fieldsList.length >= 10){
name="error"+i;
input.setProperty("BaseFilename", name );
}}