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The DOMException interface represents an abnormal event (called an exception) which occurs as a result of calling a method or accessing a property of a web API. This is basically how error conditions are described in web APIs.
Each exception has a name, which is a short "CamelCase" style string identifying the error or abnormal condition.
Constructor
DOMException()- Returns a
DOMExceptionobject with a specified message and name.
Attributes
DOMException.codeRead only- Returns a
shortthat contains one of the error code constants, or0if none match. This field is used for historical reasons, new kind of DOM exceptions don't use anymore: they put this info in theDOMException.nameattribute. DOMException.nameRead only- Returns a
DOMStringthat contains one of the strings associated with an error name.
Error names
Common error names are listed here. Some APIs define their own sets of names, so this is not necessarily a complete list.
Because historically the errors were identified by a numeric value which corresponded with a named variable defined to have that value, some of the entries below indicate the legacy code value and constant name which were used in the past.
IndexSizeError- The index is not in the allowed range. For example, this can be thrown by
Rangeobject. (Legacy code value:1and legacy constant name:INDEX_SIZE_ERR) HierarchyRequestError- The node tree hierarchy is not correct. (Legacy code value:
3and legacy constant name:HIERARCHY_REQUEST_ERR) WrongDocumentError- The object is in the wrong
Document. (Legacy code value:4and legacy constant name:WRONG_DOCUMENT_ERR) InvalidCharacterError- The string contains invalid characters. (Legacy code value:
5and legacy constant name:INVALID_CHARACTER_ERR) NoModificationAllowedError- The object can not be modified. (Legacy code value:
7and legacy constant name:NO_MODIFICATION_ALLOWED_ERR) NotFoundError- The object can not be found here. (Legacy code value:
8and legacy constant name:NOT_FOUND_ERR) NotSupportedError- The operation is not supported. (Legacy code value:
9and legacy constant name:NOT_SUPPORTED_ERR) InvalidStateError- The object is in an invalid state. (Legacy code value:
11and legacy constant name:INVALID_STATE_ERR) SyntaxError- The string did not match the expected pattern. (Legacy code value:
12and legacy constant name:SYNTAX_ERR) InvalidModificationError- The object can not be modified in this way. (Legacy code value:
13and legacy constant name:INVALID_MODIFICATION_ERR) NamespaceError- The operation is not allowed by Namespaces in XML. (Legacy code value:
14and legacy constant name:NAMESPACE_ERR) InvalidAccessError- The object does not support the operation or argument. (Legacy code value:
15and legacy constant name:INVALID_ACCESS_ERR) TypeMismatchError- The type of the object does not match the expected type. (Legacy code value:
17and legacy constant name:TYPE_MISMATCH_ERR) This value is deprecated, the JavaScriptTypeErrorexception is now raised instead of aDOMExceptionwith this value. SecurityError- The operation is insecure. (Legacy code value:
18and legacy constant name:SECURITY_ERR) NetworkError- A network error occurred. (Legacy code value:
19and legacy constant name:NETWORK_ERR) AbortError- The operation was aborted. (Legacy code value:
20and legacy constant name:ABORT_ERR) URLMismatchError- The given URL does not match another URL. (Legacy code value:
21and legacy constant name:URL_MISMATCH_ERR) QuotaExceededError- The quota has been exceeded. (Legacy code value:
22and legacy constant name:QUOTA_EXCEEDED_ERR) TimeoutError- The operation timed out. (Legacy code value:
23and legacy constant name:TIMEOUT_ERR) InvalidNodeTypeError- The node is incorrect or has an incorrect ancestor for this operation. (Legacy code value:
24and legacy constant name:INVALID_NODE_TYPE_ERR) DataCloneError- The object can not be cloned. (Legacy code value:
25and legacy constant name:DATA_CLONE_ERR) EncodingError- The encoding or decoding operation failed (No legacy code value and constant name).
NotReadableError- The input/output read operation failed (No legacy code value and constant name).
UnknownError- The operation failed for an unknown transient reason (e.g. out of memory) (No legacy code value and constant name).
ConstraintError- A mutation operation in a transaction failed because a constraint was not satisfied (No legacy code value and constant name).
DataError- Provided data is inadequate (No legacy code value and constant name).
TransactionInactiveError- A request was placed against a transaction which is currently not active, or which is finished (No legacy code value and constant name).
ReadOnlyError- The mutating operation was attempted in a "readonly" transaction (No legacy code value and constant name).
VersionError- An attempt was made to open a database using a lower version than the existing version (No legacy code value and constant name).
OperationError- The operation failed for an operation-specific reason (No legacy code value and constant name).
NotAllowedError- The request is not allowed by the user agent or the platform in the current context, possibly because the user denied permission (No legacy code value and constant name).
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web IDL (Second Edition) The definition of 'constructor' in that specification. |
Candidate Recommendation | Adds the constructor for the DOMException class. Adds the NotReadableError, UnknownError, ConstraintError, DataError, TransactionInactiveError, ReadOnlyError, VersionError, OperationError, and NotAllowedError values. |
| DOM4 The definition of 'DOMException' in that specification. |
Recommendation | Added SECURITY_ERR, NETWORK_ERR, ABORT_ERR, URL_MISMATCH_ERR, QUOTA_EXCEEDED_ERR, TIMEOUT_ERR, INVALID_NODE_TYPE_ERR, and DATA_CLONE_ERR. The property code has been deprecated for exception values. The EncodingError value added. |
| Document Object Model (DOM) Level 3 Core Specification The definition of 'DOMException' in that specification. |
Recommendation | Added of VALIDATION_ERR and TYPE_MISMATCH_ERR. |
| Document Object Model (DOM) Level 2 Core Specification The definition of 'DOMException' in that specification. |
Recommendation | Added of INVALID_STATE_ERR, SYNTAX_ERR, INVALID_MODIFICATION_ERR, NAMESPACE_ERR, and INVALID_ACCESS_ERR. |
| Document Object Model (DOM) Level 1 Specification The definition of 'DOMException' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 1.0 (1.7 or earlier) | ? | ? | ? |
| DOM Level 4 support | (Yes) | ? | 13.0 (13.0) | ? | ? | ? |
DATA_CLONE_ERR constant |
(Yes) | (Yes) | 5.0 (5.0) | ? | ? | ? |
| Constructor | No support | No support | ? | ? | ? | ? |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | ? | (Yes) | (Yes) | 1.0 (1.0) | ? | ? | ? | (Yes) |
| DOM Level 4 support | ? | (Yes) | ? | 13.0 (13.0) | ? | ? | ? | (Yes) |
DATA_CLONE_ERR constant |
? | (Yes) | (Yes) | 5.0 (5.0) | ? | ? | ? | (Yes) |
| Constructor | No support | No support | No support | ? | ? | ? | ? | No support |
See also
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