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The read-only property ValidityState.badInput indicates if the user has provided input that the browser is unable to convert. For example, if you have a mail input element whose content does not have a '@'.
Example
<input type="mail" id="email">
var input = document.getElementById("email");
if (input.validity.badInput) {
console.log("Bad input detected…");
} else {
console.log("Content of input ok.");
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'ValidityState.badInput' in that specification. |
Living Standard | Live Standard |
| HTML5.1 The definition of 'ValidityState.badInput' in that specification. |
Working Draft | No change from the previous snapshot HTML5. |
| HTML5 The definition of 'ValidityState.badInput' in that specification. |
Recommendation | First snapshot of WHATWG HTML Living Standard containing this interface. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | 29 (29) | ? | ? | ? |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | 29.0 (29) | ? | ? | ? |