no-array-constructor.md

Disallow generic Array constructors (no-array-constructor)

Use of the Array constructor to construct a new array is generally discouraged in favor of array literal notation because of the single-argument pitfall and because the Array global may be redefined. Two exceptions are when the Array constructor is used to intentionally create sparse arrays of a specified size by giving the constructor a single numeric argument, or when using TypeScript type parameters to specify the type of the items of the array (new Array<Foo>()).

Rule Details

This rule disallows Array constructors.

Examples of incorrect code for this rule:

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

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

Examples of correct code for this rule:

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

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

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

When Not To Use It

This rule enforces a nearly universal stylistic concern. That being said, this rule may be disabled if the constructor style is preferred.

^{Taken with ❤️ from ESLint core}