WebAssembly.LinkError() constructor

The WebAssembly.LinkError() constructor creates a new WebAssembly LinkError object, which indicates an error during module instantiation (besides traps from the start function).

Syntax

new WebAssembly.LinkError()
new WebAssembly.LinkError(message)
new WebAssembly.LinkError(message, fileName)
new WebAssembly.LinkError(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 LinkError instance

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

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

Browser compatibility

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See also