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

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`CompileError`	57	16	52 Disabled in the Firefox 52 Extended Support Release (ESR).	No	44	11	57	57	52 Disabled in the Firefox 52 Extended Support Release (ESR).	43	11	7.0