The HTML DOM option value property returns and modify the value of an option which is going to be sent over the server.
Syntax
Following is the syntax −
Returning value
object.value
Modifying label
object.value = “text”
Example
Let us see an example of HTML DOM option value property −
<!DOCTYPE html>
<html>
<head>
<style>
html{
height:100%;
}
body{
text-align:center;
color:#fff;
background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) center/cover no-repeat;
height:100%;
}
p{
font-weight:700;
font-size:1.2rem;
}
.drop-down{
width:35%;
border:2px solid #fff;
font-weight:bold;
padding:8px;
}
.btn{
background:#0197F6;
border:none;
height:2rem;
border-radius:2px;
width:35%;
margin:2rem auto;
display:block;
color:#fff;
outline:none;
cursor:pointer;
}
.show{
font-size:1.5rem;
font-weight:bold;
}
</style>
</head>
<body>
<h1>DOM Option value Demo</h1>
<p>Hi, Select your favourite subject:</p>
<select class='drop-down'>
<option value="Physics">Physics</option>
<option value="Maths">Maths</option>
<option value="Chemistry">Chemistry</option>
<option value="English">English</option>
</select>
<button onclick="showValue()" class="btn">Show Value</button>
<div class="show"></div>
<script>
function showValue() {
var dropDown = document.querySelector(".drop-down");
var msg = document.querySelector(".show").innerHTML="The selected value is: " + dropDown.options[dropDown.selectedIndex].value;
}
</script>
</body>
</html>Output
This will produce the following output −
Select your favourite subject from the drop-down list and then click on “Show Value” button to display the value of the value attribute of the selected option.
