The HTML DOM Input Date required property determines whether Input date is compulsory to set or not.
Syntax
Following is the syntax −
- Returning boolean value - true/false
inputDateObject.required
- Setting required to booleanValue
inputDateObject.required = booleanValue
Boolean Values
Here, “booleanValue” can be the following −
| booleanValue | Details |
|---|---|
| true | It defines that it is compulsory to set the date field to submit form. |
| false | It is the default value and to set date field is not compulsory. |
Example
Let us see an example of Input Date required property −
<!DOCTYPE html>
<html>
<head>
<title>Input Date required</title>
</head>
<body>
<form>
<div>
Name: <input type="text" name="fullName">
</div>
<div>
Date of Birth: <input type="date" id="dateSelect" required>
</div>
</form>
<button onclick="submit()">Confirm</button>
<div id="divDisplay"></div>
<script>
var divDisplay = document.getElementById("divDisplay");
var inputDate = document.getElementById("dateSelect");
function submit() {
if(inputDate.required==true && inputDate.value==='')
divDisplay.textContent = 'DOB required';
else
divDisplay.textContent = 'Details Received';
}
</script>
</body>
</html>Output
This will produce the following output −
Clicking ‘Confirm’ button −
After clicking ‘Confirm’ button with value of date field set −
