no-array-constructor

Disallow generic Array constructors.

✅

Extending "plugin:@typescript-eslint/recommended" in an ESLint configuration enables this rule.

🔧

Some problems reported by this rule are automatically fixable by the --fix ESLint command line option.

This rule extends the base eslint/no-array-constructor rule. It adds support for the generically typed Array constructor (new Array<Foo>()).

❌ Incorrect

Array(0, 1, 2);
new Array(0, 1, 2);

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✅ Correct

Array<number>(0, 1, 2);
new Array<Foo>(x, y, z);

Array(500);
new Array(someOtherArray.length);

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Options

See eslint/no-array-constructor's options.

How to Use

Flat Config

eslint.config.mjs

export default tseslint.config({
  rules: {
    // Note: you must disable the base rule as it can report incorrect errors
    "no-array-constructor": "off",
    "@typescript-eslint/no-array-constructor": "error"
  }
});

Legacy Config

.eslintrc.cjs

module.exports = {
  "rules": {
    // Note: you must disable the base rule as it can report incorrect errors
    "no-array-constructor": "off",
    "@typescript-eslint/no-array-constructor": "error"
  }
};

Try this rule in the playground ↗

Resources

• Rule source
• Test source

^{Taken with ❤️ from ESLint core.}