WebAssembly.CompileError() constructor

The WebAssembly.CompileError() constructor creates a new WebAssembly CompileError object, which indicates an error during WebAssembly decoding or validation.

Syntax

new WebAssembly.CompileError()
new WebAssembly.CompileError(message)
new WebAssembly.CompileError(message, fileName)
new WebAssembly.CompileError(message, fileName, lineNumber)

Parameters

message Optional
Human-readable description of the error.
fileName Optional
The name of the file containing the code that caused the exception.
lineNumber Optional
The line number of the code that caused the exception.

Examples

Creating a new CompileError instance

The following snippet creates a new CompileError instance, and logs its details to the console:

try {
  throw new WebAssembly.CompileError('Hello', 'someFile', 10);
} catch (e) {
  console.log(e instanceof CompileError); // true
  console.log(e.message);                 // "Hello"
  console.log(e.name);                    // "CompileError"
  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
# exceptiondef-compileerror
ECMAScript Language Specification (ECMAScript)
# sec-nativeerror-constructors

Browser compatibility

BCD tables only load in the browser

See also