Your JSON has 2 top-level elements. So, you can’t logically iterate across the entire document (without flattening it).
But you can iteration across the “MATHS” and “LOGICAL REASONING” elements.
For example, using underscore:
_(data.MATHS).each(function(item) {
var section = item.SECTION;
var type = item.TYPE;
var count = item.COUNT;
// Now do something with them
});
Note the different access method to the ‘LOGICAL REASONING’ element, because of the space.
_(data['LOGICAL REASONING').each(function(item) {
var section = item.SECTION;
var type = item.TYPE;
var count = item.COUNT;
// Now do something with them
});
If you wanted all the data together, one way of doing it would be:
var flattened = _.union(data.MATHS, data['LOGICAL REASONING']);
_(flattened).each(function(item) {
// Process...
});
Check out the underscore docs for some more information about the possibilities. Many ways to skin a cat.
Cheers.