select2 selected code example

Example 1: select2 clear options

Remove the selected options : 
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$('#mySelect2').val(null).trigger('change');

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Completly remove the select2 initialization :
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$('#payment_method').html('').select2({data: [{id: '', text: ''}]});

Example 2: select2

$('.js-example-basic-single').select2({
  placeholder: 'Select an option'
});

Example 3: select2 dropdown with option to add new item

$('#select2')
    .select2()
    .on('select2:open', () => {
        $(".select2-results:not(:has(a))").append('<a href="#" style="padding: 6px;height: 20px;display: inline-table;">Create new item</a>');
})

Example 4: select2

$(".js-example-basic-multiple-limit").select2({
  maximumSelectionLength: 3
});

Example 5: select2 .select2-results .select2-highlighted

$(document).ready(function() {
    $("#menuOption1").select2({dropdownParent: "#menuOption1-container"});
    $("#menuOption2").select2({dropdownParent: "#menuOption2-container"});
});