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WebAssembly.runtimeError

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 own message property, in SpiderMonkey, it inherits Error.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 from Error.

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

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
RuntimeError 57 16 52
52
Disabled in the Firefox 52 Extended Support Release (ESR).
No 44 11
RuntimeError() constructor 57 16 52
52
Disabled in the Firefox 52 Extended Support Release (ESR).
No 44 11
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
RuntimeError 57 57 52
52
Disabled in the Firefox 52 Extended Support Release (ESR).
43 11 7.0
RuntimeError() constructor 57 57 52
52
Disabled in the Firefox 52 Extended Support Release (ESR).
43 11 7.0
Server
Node.js
RuntimeError 8.0.0
RuntimeError() constructor 8.0.0

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://wiki.developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/RuntimeError