unicorn/no-new-array Correctness

✅ This rule is turned on by default.

🚧 An auto-fix is still under development.

What it does

Disallow new Array().

Why is this bad?

When using the Array constructor with one argument, it's not clear whether the argument is meant to be the length of the array or the only element.

Examples

Examples of incorrect code for this rule:

const array = new Array(1);
const array = new Array(42);
const array = new Array(foo);

Examples of correct code for this rule:

const array = Array.from({ length: 42 });
const array = [42];

References

• Rule Source