DataTables example - API plug-in methods

The Javascript shown below is used to initialise the table shown in this example:

$.fn.dataTable.Api.register( 'column().data().sum()', function () {
	return this.reduce( function (a, b) {
		var x = parseFloat( a ) || 0;
		var y = parseFloat( b ) || 0;
		return x + y;
	} );
} );

/* Init the table and fire off a call to get the hidden nodes. */
$(document).ready(function() {
	var table = $('#example').DataTable();
	
	$('<button>Click to sum age in all rows</button>')
		.prependTo( '#demo' )
		.on( 'click', function () {
			alert( 'Column sum is: '+ table.column( 3 ).data().sum() );
		} );

	$('<button>Click to sum age of visible rows</button>')
		.prependTo( '#demo' )
		.on( 'click', function () {
			alert( 'Column sum is: '+ table.column( 3, {page:'current'} ).data().sum() );
		} );
} );

In addition to the above code, the following Javascript library files are loaded for use in this example:

• ../../media/js/jquery.js
• ../../media/js/jquery.dataTables.js