html read document.getelementbyid code example
Example 1: how to use document.getelementbyid
<p id="YourId">How to use document.GetElementById in HTML</p>
<script>
document.GetElementById('YourId')./* The thing you need to do to your code... Here I want .innerHTML you can take any... */.innerHTML('/* what will it change... */')
</script>
Example 2: document.getElementById
function changeColor(newColor) {
var elem = document.getElementById('para');
elem.style.background-color = newColor;
}