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no-redundant-optional-array-default

Remove .optional() immediately inside a Zod array default.

redundantOptionalArrayDefault Rule source Tests Catalog JSON

Why

An outer default already accepts undefined array input, so the inner optional wrapper adds no state or fallback behavior.

Fix

Keep the array default and remove the immediately preceding .optional() call.

Examples

Before — flagged Do not wrap a defaulted list in a redundant optional

src/schema.ts

import { z } from "zod";
const Items = z.array(z.string()).optional().default([]);

After — preferred Default an omitted list directly

src/schema.ts

import { z } from "zod";
const Items = z.array(z.string()).default([]);

Autofix output

src/schema.ts

import { z } from "zod";
const Items = z.array(z.string()).default([]);