# Utilizing error objects

When a runtime error occurs, a new `Error` object is created and thrown. With this `Error` object, we can determine the type of the Error and handle it according to its type.

## Types of Errors

Besides error constructors, Javascript also has other core Error constructors. Like

- AggregateError - A collection of errors thrown simultaneously.
- EvalError - An error occurred during the evaluation of a JavaScript expression.
- InternalError - An internal JavaScript error, often indicating a bug in the engine.
- RangeError - A value is outside the allowed range for a given operation.
- ReferenceError - A variable or object is referenced before it's declared or doesn't exist.
- SyntaxError - The code contains incorrect syntax, preventing it from being parsed.

## Example

```js
try {
  willGiveErrorSometime();
} catch (error) {
  if (error instanceof RangeError) {
    rangeErrorHandler(error);
  } else if (error instanceof ReferenceError) {
    referenceErrorHandle(error);
  } else {
    errorHandler(error);
  }
}
```

Visit the following resources to learn more:

- [@article@Error Object - MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error)
- [@article@Control flow & Error handling - MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling)
- [@article@AggregateError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/AggregateError)
- [@article@EvalError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/EvalError)
- [@article@InternalError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/InternalError)
- [@article@RangeError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError)
- [@article@ReferenceError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError)
- [@article@SyntaxError](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError)