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.

Examples

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

❌ Incorrect

/*eslint no-array-constructor: "error"*/

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

✅ Correct

/*eslint no-array-constructor: "error"*/

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

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

How to Use

.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 ↗

Options

See eslint/no-array-constructor options.

Resources

• Rule source
• Test source

^{Taken with ❤️ from ESLint core}