# Require `throw new Error()` rather than `throw Error()` (new-with-error)

This is a style requirement of Node.js core code. Perhaps you will find it useful too.


## Rule Details

This rule aims to make sure that there is consistency with how Errors are thrown.

The following patterns are considered warnings:

```js

throw Error('foo');

```

The following patterns are not warnings:

```js

throw new Error('foo');

```

### Options

You can include an array of Error types you want checked (SyntaxError, ReferenceError, etc.). Or don't provide it and you'll get checks on Error, EvalError, RangeError, ReferenceError, SyntaxError, TypeError, and URIError.

## When Not To Use It

If you don't care if there's a mix of `throw Error()` and `throw new Error()` in your code, then this is not the rule for you.

## Further Reading

* https://github.com/nodejs/node/pull/3714