jquery data- code example
Example 1: jquery get data attribute
<a data-id="123">link</a>
var id = $(this).data("id"); // Will set id to 123
Example 2: jquery data
$( "body" ).data( "foo", 52 );
$( "body" ).data( "bar", { isManual: true } );
$( "body" ).data( { baz: [ 1, 2, 3 ] } );
$( "body" ).data( "foo" ); // 52
$( "body" ).data(); // { foo: 52, bar: { isManual: true }, baz: [ 1, 2, 3 ] }