I have a table that is generated from any text pasted into a textarea using the jQuery plugin, Datatables. I want to ignore numbers as well as a large list of common words such as "and, or, for, the, but, etc." How would I go about this?

Here is my current JavaScript:

```
<script>
        $( document ).ready( function() {

            $('form').submit(function(event){
                    event.preventDefault();
                    var
                            keyword_list = $('#searchtext').val().split(" "),
                            word_list = $('#searchtext').val().split(" "),
                            nwords = word_list.length;
                            $('#result').html(nwords + " Total Words in Article");
                    keyword_dict = {};
                    for (var i = 0, w; w = keyword_list[i]; i++) {
                            var w = w.replace(/\W/g,'');
                            keyword_dict[w] = 0;
                    }
                    for (var i = 0, w; w = word_list[i]; i++) {
                            var w = w.replace(/\W/g,'');
                            for(var keyword in keyword_dict){
                                    if (keyword == w){
                                            keyword_dict[w] += 1;
                                    }
                            }
                    }

                    items = '<thead><th>unique keywords</th><th>occurance</th><th>percent of text</th></thead>';
                    for (keyword in keyword_dict){
                            var occ = keyword_dict[keyword]*100/nwords;
                            var c=''
                            items += '<tr class="'+c+'"><td>'+keyword+'</td><td>'+keyword_dict[keyword]+'</td><td>'+occ.toPrecision(2)+'</td></tr>';
                        }
                    console.log(keyword_dict);
                    $('#result').append('<table>'+items+'<table>');
                    $('#result table').dataTable();
            });
     });
</script>

```

Here is the HTML:

```
<form>
    <label>Article:</label><br>
    <textarea rows="25" cols="100" id="searchtext"></textarea><br>
    <input class="btn btn-success" id="go" type="submit" value="Submit"></input>
</form>

<div id="result">
</div>

```