JSFiddle - React, Tailwind, and code Playground

HTML

<img src="http://placehold.it/94x95&text=img1" />
<img id="img2" src="http://placehold.it/94x95&text=img2" />
<script type="text/javascript">
    //透過 document 物件與 id 取得網頁元素
    var img = document.getElementById("img2");
    img.onclick = function(){
        var theimg = document.getElementById("img2");            
        theimg.src="http://placehold.it/94x95&text=Clicked";
    }
</script>