Baseline Widely available
The checkValidity() method of the HTMLSelectElement interface returns a boolean value which indicates if the element meets any constraint validation rules applied to it. If false, the method also fires an invalid event on the element. Because there's no default browser behavior for checkValidity(), canceling this invalid event has no effect.
Note: An HTML <select> element with a non-null validationMessage is considered invalid, will match the CSS :invalid pseudo-class, and will cause checkValidity() to return false. Use the HTMLSelectElement.setCustomValidity() method to set the HTMLSelectElement.validationMessage to the empty string to set the validity state to be valid.
None.
Return valueReturns true if the element's value has no validity problems; otherwise, returns false.
In the following example, calling checkValidity() returns either true or false.
const element = document.getElementById("mySelect");
console.log(element.checkValidity());
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4