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HTML DOM Input Number readOnly Property
The HTML DOM input number readOnly property returns and modify whether the input number field is read-only or not in an HTML document.
Syntax
Following is the syntax −
Returning readOnly
object.readOnly
Modifying readOnly
object.readOnly = true | false
Example
Let us see an example of input number readOnly 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:1.1rem;
}
input{
display:block;
width:35%;
border:2px solid #fff;
background-color:transparent;
color:#fff;
font-weight:bold;
padding:8px;
margin:1rem auto;
outline:none;
}
.btn{
background:#0197F6;
border:none;
height:2rem;
border-radius:2px;
width:35%;
margin:2rem auto;
display:block;
color:#fff;
outline:none;
cursor:pointer;
}
</style>
</head>
<body>
<h1>DOM Input number readOnly property Demo</h1>
<p>Hi, Select your day of birth?</p>
<input type="number" class="numberInput">
<button onclick="rFunction()" class="btn">Read Only</button>
<button onclick="rWFunction()" class="btn">Read & Write</button>
<script>
function rFunction() {
var monthInput = document.querySelector(".numberInput");
monthInput.readOnly =true;
}
function rWFunction(){
var monthInput = document.querySelector(".numberInput");
monthInput.readOnly =false;
}
</script>
</body>
</html>Output
This will produce the following output −
Click on “Read Only” & then on “Read & Write” button to understand how readOnly property work.
Updated on: 01-Jul-2020
103 Views
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