WebAssembly.RuntimeError()

Creates a new WebAssembly.RuntimeError object.

WebAssembly.RuntimeError.prototype.message

Error message. Inherited from Error.

WebAssembly.RuntimeError.prototype.name

Error name. Inherited from Error.

WebAssembly.RuntimeError.prototype.cause

Error cause. Inherited from Error.

WebAssembly.RuntimeError.prototype.fileName Non-standard

Path to file that raised this error. Inherited from Error.

WebAssembly.RuntimeError.prototype.lineNumber Non-standard

Line number in file that raised this error. Inherited from Error.

WebAssembly.RuntimeError.prototype.columnNumber Non-standard

Column number in line that raised this error. Inherited from Error.

WebAssembly.RuntimeError.prototype.stack Non-standard

Stack trace. Inherited from Error.

WebAssembly.RuntimeError.prototype.toString()

Returns a string representing the specified Error object. Inherited from Error.

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 WebAssembly.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
}

• WebAssembly overview page
• WebAssembly concepts
• Using the WebAssembly JavaScript API