@putout/plugin-remove-useless-new

🐊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 cannot be used with new, as it is primitive. Part of @putout/plugin-new.

Install

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

Rule

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

❌ Example of incorrect code

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

✅ Example of correct code

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

Comparison

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

License

MIT