The code read-only property of the DOMException interface returns a short that contains one of the error code constants, or 0 if none match. This field is used for historical reasons. New DOM exceptions don't use this anymore: they put this info in the DOMException.name attribute.
var domExceptionCode = domExceptionInstance.code;
A short number.
| Specification | Status | Comment |
|---|---|---|
| Web IDL The definition of 'code' in that specification. | Candidate Recommendation |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | Yes | 1 | ? | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 4 | ? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/DOMException/code