# no-extra-params

> Disallow more factory parameters than dependency literals.

‼️ **Problem** • ✅ **Recommended**  • ❌ **Fixable**

## Details

When the factory function has more parameters than there are entries in the dependency array, the extra parameters will always be `undefined`. This is nearly always an error.

### ✅ Correct

```js
define(() => {});
```

```js
define([], () => {});
```

```js
define(['foo'], (foo) => {});
```

```js
define(['foo', 'bar'], (foo, bar) => {});
```

### ❌ Incorrect

```js
define((foo) => {});
```

```js
define([], (foo) => {});
```

```js
define(['foo'], (foo, bar) => {});
```

## Introduced

1.0.0