get selected checkbox value with submit button in jquery code example

Example 1: get value of all checked boxes jquery

var values = $('input[name=grepperRocks]:checked')
               .map(() => { return this.value }).get();

Example 2: jquery get selected checkboxes

var selected = [];
$('#checkboxes input:checked').each(function() {
    selected.push($(this).attr('name'));
});