To set an element’s display type, use the display property. If you want to hide the element, then use none.
Example
You can try to run the following code to set an element's display type with JavaScript −
<!DOCTYPE html>
<html>
<head>
<style>
#myID {
width: 250px;
height: 200px;
background-color: green;
}
</style>
</head>
<body>
<button onclick="display()">Set display as none</button>
<div id="myID">
<h1>Heading Level 1 for Demo</h1>
This is Demo Text. This is Demo Text. This is Demo Text. This is Demo Text.
</div>
<script>
function display() {
document.getElementById("myID").style.display = "none";
}
</script>
</body>
</html>