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HTML DOM Input Number form Property
The HTML DOM input number form property returns the reference of the form that contains the number input field in the HTML document.
Syntax
Following is the syntax −
object.form
Example
Let us see an example of HTML DOM input number form property −
<!DOCTYPE html>
<html>
<head>
<style>
body{
text-align:center;
background-color:#1b203a;
color:#fff;
}
form{
margin:2.5rem auto;
border:1px solid #fff;
padding:2rem;
}
button{
background-color:#db133a;
border:none;
cursor:pointer;
padding:8px 16px;
color:#fff;
border-radius:5px;
font-size:1.05rem;
outline:none;
}
input{
border:none;
background-color:#ffffff4a;
height:1.2rem;
padding:8px;
color:#fff;
font-weight:bold;
font-size:1rem;
}
.show{
font-weight:bold;
font-size:1.4rem;
}
</style>
</head>
<body>
<h1>form Property Demo</h1>
<form id="Form 1">
<legend>Form 1</legend>
<input type="number" class="numberInput" value="12345300">
</form>
<button onclick="identify()">Identify Number Input Field</button>
<p class="show"></p>
<script>
function identify() {
var formId = document.querySelector(".numberInput").form.id;
document.querySelector(".show").innerHTML = "Hi! I'm from " + formId;
}
</script>
</body>
</html>Output
This will produce the following output −
Click on “Identify Number Input Field” button to identify the form which contain the input number field.
Updated on: 30-Jul-2019
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