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 −