https://datatables.net/examples/ajax/null_data_source.html

index.blade.php

<script type="module">

        let data = {!! $keywords !!};

        $('#example tbody').on('click', 'button', function () {
            var data = table.row($(this).parents('tr')).data();

            $("#keyword").val(data.keyword);
            $("#keyword").focus();
        });

        let table = new DataTable('#example', {
            data: data,
            columns: [
                { data: 'id' },
                { data: 'keyword' },
                { data: 'term_group' },
                { data: 'difficulty' },
                { data: 'volume' },
                {
                    data: null,
                    render: function(data, type, row) {
                        return '<button type="button" class="choose_keyword inline-flex items-center px-4 py-2 bg-pink-600 border border-transparent rounded-md font-semibold text-xs text-white uppercase tracking-widest hover:bg-pink-700 focus:bg-pink-700 active:bg-pink-900 focus:outline-none focus:ring-2 focus:ring-indigo-500 focus:ring-offset-2 transition ease-in-out duration-150">Choose Keyword</button>';
                    }
                }
            ]
        });
        
    </script>