Javascript Reference - HTML DOM Input Week required Property

The required property sets or gets whether a week field must be filled before submitting a form.

Browser Support


`required`	Yes	No	No	Yes	Yes

Syntax

Return the required property.

var v = weekObject.required

Set the required property.

weekObject.required=true|false

Property Values

Value	Description
true\|false	Specifies whether a week field is a required part of the form. true - The week field is required false - Default. The week field is not required

Return Value

A Boolean type value, true if the week field is a required part of form submission, otherwise false.

Example

The following code shows how to set a week field to be required.


<!DOCTYPE html>
<html>
<body>
<!--from w  ww  .  j a  v a2 s  .  c  om-->
<form action="url">
  Week: <input type="week" id="myWeek" name="week_year">
  <input type="submit">
</form>
<button onclick="myFunction()">test</button>
<script>
function myFunction() {
    document.getElementById("myWeek").required = true;
}
</script>
</body>
</html>

The code above is rendered as follows:

Example 2

The following code shows how to check if a week field must be filled out before submitting a form.


<!DOCTYPE html>
<html>
<body>
<!-- w  ww.  j  a v a  2s .c o  m-->
<form action="url">
  Week: <input type="week" id="myWeek" name="week_year" required>
  <input type="submit">
</form>
<button onclick="myFunction()">test</button>
<p id="demo"></p>
<script>
function myFunction() {
    var x = document.getElementById("myWeek").required;
    document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>

The code above is rendered as follows: