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HTML DOM Input Time required Property
The HTML DOM Input Time required property determines whether Input Time is compulsory to set or not.
Syntax
Following is the syntax −
- Returning boolean value - true/false
inputTimeObject.required
- Setting required to booleanValue
inputTimeObject.required = booleanValue
Boolean Values
Here, “booleanValue” can be the following −
| booleanValue | Details |
|---|---|
| true | It is compulsory to set the time field to submit form. |
| false | It is the default value and to set time field is not compulsory. |
Example
Let us see an example of Input Time required property −
<!DOCTYPE html>
<html>
<head>
<title>Input Time required</title>
<style>
form {
width:70%;
margin: 0 auto;
text-align: center;
}
* {
padding: 2px;
margin:5px;
}
input[type="button"] {
border-radius: 10px;
}
</style>
</head>
<body>
<form>
<fieldset>
<legend>Time-required</legend>
<label for="TimeSelect">Appointment with Supervisor:</label>
<input type="time" id="TimeSelect" required>
<input type="button" onclick="fixMeeting()" value="Fix Meeting">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
var divDisplay = document.getElementById("divDisplay");
var inputTime = document.getElementById("TimeSelect");
function fixMeeting() {
if(inputTime.required === true && inputTime.value === '')
divDisplay.textContent = 'The meeting time is required';
else
divDisplay.textContent = 'The meeting time fixed at: '+inputTime.value;
}
</script>
</body>
</html>
Output
This will produce the following output −
Clicking ‘Fix Meeting’ button with empty time field −
After clicking ‘Fix Meeting’’ button with time field set −
Updated on: 2019-07-30T22:30:26+05:30
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