Find out if a checkbox must be checked before submitting a form:
The result of x will be:
The required property sets or returns whether a checkbox must be checked before submitting a form.
This property reflects the HTML required attribute.
The required property is supported in all major browsers, except Safari.
Note: The required property is not supported in Internet Explorer 9 and earlier versions.
Return the required property:
Set the required property:
Value | Description |
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true|false |
Specifies whether a checkbox should be checked before submitting a form
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Return Value: | A Boolean, returns true if the checkbox must be checked before submitting a form, otherwise it returns false |
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Set a checkbox to be a required part of form submission:
HTML reference: HTML <input> required attribute