The read-only badInput
property of a ValidityState object indicates if the user has provided input that the browser is unable to convert. For example, if you have a number input element whose content is a string.
ValidityState.badInput
Value
A boolean.
Examples
<input type="number" id="age">
var input = document.getElementById("age"); if (input.validity.badInput) { console.log("Bad input detected…"); } else { console.log("Content of input OK."); }
Specifications
Specification |
---|
HTML Standard # dom-validitystate-badinput-dev |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
badInput |
25
|
12
|
29
|
No
|
15
|
11
|
4.4
|
25
|
64
|
14
|
7
|
1.5
|
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ValidityState/badInput