Class ErrorCore

Returns ET

An instance of the custom error type with the original message and stack trace.

try {
  // ...
} catch (err) {
  throw ErrorCore.as(err, TypeError); // throws TypeError
  throw ErrorCore.as(err, TypeError, 'custom message'); // throws TypeError with custom message
  throw ErrorCore.as(err, TypeError, (errMsg) => `custom message: ${errMsg}`); // throws TypeError with custom message prefix
}
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Returns asserts err is Error

try {
  // ...
} catch (err) {
  ErrCore.assert(err);
  console.log(err.message);
}
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Returns ET

A new error instance with the same message and properties as the source error.

Returns Error | UnknownError

Error instance.

try {
  // ...
} catch (err) {
  console.log(ErrCore.from(err).message);
}
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Returns err is Error

True if the value is an instance of the Error class; otherwise, false.

Returns ET

An instance of the custom error type with the original message and stack trace.

try {
  // ...
} catch (err) {
  const customError = ErrorCore.with(err, (msg) => new CustomError(msg));
  throw customError;
}
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