I did it this way and it worked for me like a charm.
var data = [{ id: 0, text: 'enhancement' }, { id: 1, text: 'bug' }, { id: 2,
text: 'duplicate' }, { id: 3, text: 'invalid' }, { id: 4, text: 'wontfix' }];
$(".js-example-data-array").select2({
data: data
})