JSFiddle - React, Tailwind, and code Playground

HTML

<textarea name="txtScript" id="word_count" cols="1" rows="1"></textarea>
Total word Count : <span id="display_count">0</span> words.

JavaScript

$(document).ready(function()
{
    var wordCounts = {};
    $("#word_count").keyup(function() {
        var matches = this.value.match(/\b/g);
        wordCounts[this.id] = matches ? matches.length / 2 : 0;
        var finalCount = 0;
        $.each(wordCounts, function(k, v) {
            finalCount += v;
        });
        $('#display_count').html(finalCount);
        am_cal(finalCount);
    }).keyup();
 });