javascript - 字数计数器可以工作，但逗号和句号有问题

Question

我有一个小程序来显示一个单词在段落中重复的次数，但由于某种原因我无法拆分逗号和句点。因此，脚本将 'Cola'、'Cola,' 和 'Cola.' 视为不同的单词。

如何忽略标点符号？

<script>
    function count() {
        var inputVal = document.getElementById("textInput").value; //get text to count
        var storyWords = inputVal.split(' '); // split words

        var filterWords = storyWords.map(function(x) {
            return x.toLowerCase()
        });
        filterWords.sort();

        var current = null;
        var cnt = 0;

        for (var i = 0; i < filterWords.length; i++) {
            if (filterWords[i] != current) {
                if (cnt > 1) {
                    //    var h = document.getElementById('fillIn');
                    var table = document.getElementById('myTable');
                    var row = table.insertRow(1);
                    var cell1 = row.insertCell(0);
                    var cell2 = row.insertCell(1);
                    cell1.innerHTML = current;
                    cell2.innerHTML = cnt;

                    var h = document.createElement("LI");
                    var t = document.createTextNode(current + ' // --> ' + cnt + ' times');
                    h.appendChild(t);
                    document.body.appendChild(h);

                }
                current = filterWords[i];
                cnt = 1;
            } else {
                cnt++;
            }
        }

        if (cnt > 1) {

            var h = document.createElement("LI");
            //var h = document.getElementById('fillIn');
            var t = document.createTextNode(current + ' // --> ' + cnt + ' times');
            h.appendChild(t);
            document.body.appendChild(h);
        }

        document.getElementById("clickMe").disabled = true;
    }

    // On button click, execute the function
    document.getElementById("clickMe").onclick = function() {
        count();
    }
</script>

Answer 1

替换

var storyWords = inputVal.split(' '); // split words

到

var storyWords = inputVal.split(/[ ,.]/);