jQuery datatables - difference between fnGetNodes(

问题:

I was wondering what the difference is between these two calls? fnGetNodes() returns all rows and so does fnGetData(). What is the difference then?

回答1:

fnGetNodes() returns a list of tr elements that have been generated. If you are using deferRender: true fnGetNodes() will only return rows from pages that have been visited.

fnGetData() on the other hand returns the array of objects aoData that contains all rows of data (but not the tr elements).

回答2:

Interesting.

This is what we should do to access all rows using fnGetNodes()

var rows = $("#myTable").dataTable().fnGetNodes();

Using fnGetData()

$('#table1').dataTable.fnGetData();

I think it's more of functionality where specific and complex row and column operations can be done using fnGetNodes and for more generic operations fnGetData is used.