# @putout/plugin-remove-useless-new [![NPM version][NPMIMGURL]][NPMURL]

[NPMIMGURL]: https://img.shields.io/npm/v/@putout/plugin-remove-useless-new.svg?style=flat&longCache=true
[NPMURL]: https://npmjs.org/package/@putout/plugin-remove-useless-new "npm"

🐊[**Putout**](https://github.com/coderaiser/putout) plugin adds ability to remove useless operator `new`. Which has no sense for `BigInt`, `Boolean`, `String`, `Number`, `Object`, `RegExp`, `Error`:

> Thus the function call `Error(…)` is equivalent to the object creation expression `new Error(…)` with the same arguments.
>
> (c) https://262.ecma-international.org/12.0/#sec-error-constructor

And [`Symbol`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol) cannot be used with `new`, as it is primitive.
Part of [`@putout/plugin-new`](https://www.npmjs.com/package/@putout/plugin-new).

## Install

```
npm i @putout/plugin-remove-useless-new
```

## Rule

```json
{
    "rules": {
        "remove-useless-new": "on"
    }
}
```

## ❌ Example of incorrect code

```js
new Error('Something whent wrong');
new new Boolean();
```

## ✅ Example of correct code

```js
Error('Something whent wrong');
Boolean();
```

## Comparison

Linter | Rule | Fix
--------|-------|------------|
🐊 **Putout** | [`remove-useless-new`](https://github.com/coderaiser/putout/tree/master/packages/plugin-remove-useless-new#readme)| ✅
🦕 **ESLint** | [`no-new-wrappers`](https://eslint.org/docs/rules/no-new-wrappers) | ❌
⠀| [`no-new-object`](https://eslint.org/docs/rules/no-new-object) | ❌
⠀| [`no-array-constructor`](https://eslint.org/docs/rules/no-array-constructor) | ❌
⠀| [`no-new-symbol`](https://eslint.org/docs/rules/no-new-symbol) | ❌

## License

MIT


🐊Putout plugin adds ability to remove useless operator 'new'. 

Meet the Socket Team at BlackHat and DEF CON in Las Vegas, Aug 4-6

@putout/plugin-remove-useless-new

🐊Putout plugin adds ability to remove useless operator 'new'

coderaiser

plugin-remove-useless-new

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Bidirectional unicode control characters

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Bin script confusion

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

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Native code

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High entropy strings

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Unicode homoglyphs

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Network access

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New author

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@putout/plugin-remove-useless-new

@putout/plugin-remove-useless-new

Install

Rule

❌ Example of incorrect code

✅ Example of correct code

Comparison

License

Keywords

Related posts

Linter	Rule	Fix
🐊 Putout	`remove-useless-new`	✅
🦕 ESLint	`no-new-wrappers`	❌
⠀	`no-new-object`	❌
⠀	`no-array-constructor`	❌
⠀	`no-new-symbol`	❌

@putout/plugin-remove-useless-new

Install

Rule

❌ Example of incorrect code

✅ Example of correct code

Comparison

License

Keywords

Related posts

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