Find value of dynamically created element using jquery in nodejs

I have added a few table rows in my html page using jquery's method .after() However when i am trying to access this element's value in one of my nodejs methods, it returns undefined. I check the page source and it seems that these newly created elements are not present in the page source even though clearly i can see them. IS there a different method that i need to use to insert the elements into the body of my page? Thanks a tonne!