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unicorn/no-magic-array-flat-depth Restriction

What it does

Disallow magic numbers for Array.prototype.flat depth.

Why is this bad?

Magic numbers are hard to understand and maintain. When calling Array.prototype.flat, it is usually called with 1 or infinity. If you are using a different number, it is better to add a comment explaining the depth.

Example

Examples of incorrect code for this rule:

javascript
array.flat(2);
array.flat(20);

Examples of correct code for this rule:

javascript
array.flat(2 /* explanation */);
array.flat(1);
array.flat();
array.flat(Infinity);

How to use

To enable this rule in the CLI or using the config file, you can use:

bash
oxlint --deny unicorn/no-magic-array-flat-depth
json
{
  "rules": {
    "unicorn/no-magic-array-flat-depth": "error"
  }
}

References

Released under the MIT License.