JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" id="btnReadMore" value="Click Me" />
<span id="aboutUsText">textone</span>

JavaScript

$("#btnReadMore").click(function(){
    var textSpan = $('#aboutUsText');
    if (textSpan.attr("MyState")=="2"){
        textSpan.text('textone');
        textSpan.attr("MyState", "1");
    }else{
        textSpan.text('text two');
        textSpan.attr("MyState", "2");
    }
});