The WebAssembly.RuntimeError
object is the error type that is thrown whenever WebAssembly specifies a trap.
Constructor
WebAssembly.RuntimeError()
- Creates a new
WebAssembly.RuntimeError
object.
Instance properties
WebAssembly.RuntimeError.prototype.message
- Error message. Although ECMA-262 specifies that
URIError
should provide its ownmessage
property, in SpiderMonkey, it inheritsError.prototype.message
. WebAssembly.RuntimeError.prototype.name
- Error name. Inherited from
Error
. WebAssembly.RuntimeError.prototype.fileName
- Path to file that raised this error. Inherited from
Error
. WebAssembly.RuntimeError.prototype.lineNumber
- Line number in file that raised this error. Inherited from
Error
. WebAssembly.RuntimeError.prototype.columnNumber
- Column number in line that raised this error. Inherited from
Error
. WebAssembly.RuntimeError.prototype.stack
- Stack trace. Inherited from
Error
.
Instance methods
WebAssembly.RuntimeError.prototype.toSource()
- Returns code that could eval to the same error. Inherited from
Error
. WebAssembly.RuntimeError.prototype.toString()
- Returns a string representing the specified
Error
object.. Inherited fromError
.
Examples
Creating a new RuntimeError instance
The following snippet creates a new RuntimeError
instance, and logs its details to the console:
try { throw new WebAssembly.RuntimeError('Hello', 'someFile', 10); } catch (e) { console.log(e instanceof RuntimeError); // true console.log(e.message); // "Hello" console.log(e.name); // "RuntimeError" console.log(e.fileName); // "someFile" console.log(e.lineNumber); // 10 console.log(e.columnNumber); // 0 console.log(e.stack); // returns the location where the code was run }
Specifications
Specification |
---|
WebAssembly JavaScript Interface The definition of 'WebAssembly constructors' in that specification. |
ECMAScript (ECMA-262) The definition of 'NativeError' in that specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
RuntimeError | Chrome Full support 57 | Edge Full support 16 | Firefox
Full support
52
| IE No support No | Opera Full support 44 | Safari Full support 11 | WebView Android Full support 57 | Chrome Android Full support 57 | Firefox Android
Full support
52
| Opera Android Full support 43 | Safari iOS Full support 11 | Samsung Internet Android Full support 7.0 | nodejs Full support 8.0.0 |
RuntimeError() constructor | Chrome Full support 57 | Edge Full support 16 | Firefox
Full support
52
| IE No support No | Opera Full support 44 | Safari Full support 11 | WebView Android Full support 57 | Chrome Android Full support 57 | Firefox Android
Full support
52
| Opera Android Full support 43 | Safari iOS Full support 11 | Samsung Internet Android Full support 7.0 | nodejs Full support 8.0.0 |
Legend
- Full support
- Full support
- No support
- No support
- See implementation notes.
- See implementation notes.