JSFiddle - React, Tailwind, and code Playground

HTML

<body>

<div id="abc">
<p id="1">abc 0.99</p>
<p id="2">-</p>
<button onclick="GetValue()">Extract value</button>
</div>

<script>
function GetValue() {
    var myValue = document.getElementById("1").textContent;
    document.getElementById("2").innerHTML = myValue;
}
</script>

</body>