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HTML DOM Input Hidden form Property
The HTML DOM input hidden form property returns the reference of the form that contain the hidden input field in the HTML document.
Syntax
Following is the syntax −
object.form
Example
Let us see an example of HTML DOM input hidden form property −
<!DOCTYPE html>
<html>
<head>
<style>
body{
text-align:center;
background-color:#363946;
color:#fff;
}
form{
margin:2.5rem auto;
}
button{
background-color:#db133a;
border:none;
cursor:pointer;
padding:8px 16px;
color:#fff;
border-radius:5px;
font-size:1.05rem;
}
.show{
font-weight:bold;
font-size:1.4rem;
}
</style>
</head>
<body>
<h1>form Property Demo</h1>
<form id="Form 1">
<fieldset>
<legend>Form 1</legend>
Here is hidden input field: <input type="hidden" class="hiddenField">
</fieldset>
</form>
<button onclick="identify()">Identify Hidden Input Field</button>
<p class="show"></p>
<script>
function identify() {
var formId = document.querySelector(".hiddenField").form.id;
document.querySelector(".show").innerHTML = "Hi! I'm from " + formId;
}
</script>
</body>
</html>Output
This will produce the following output −
Click on “Identify Hidden Input Field” button to identify the form which contain the hidden input field.
Updated on: 30-Jul-2019
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