WebAssembly.CompileError() constructor
The WebAssembly.CompileError()
constructor creates a new
WebAssembly CompileError
object, which indicates an error during
WebAssembly decoding or validation.
Syntax
js
new WebAssembly.CompileError()
new WebAssembly.CompileError(message)
new WebAssembly.CompileError(message, options)
new WebAssembly.CompileError(message, fileName)
new WebAssembly.CompileError(message, fileName, lineNumber)
Parameters
message
Optional-
Human-readable description of the error.
options
Optional-
An object that has the following properties:
cause
Optional-
A property indicating the specific cause of the error. When catching and re-throwing an error with a more-specific or useful error message, this property can be used to pass the original error.
fileName
Optional Non-standard-
The name of the file containing the code that caused the exception.
lineNumber
Optional Non-standard-
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:
js
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 # sec-nativeerror-constructors |
Browser compatibility
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