Arrays Rules

When destructuring parameters in array method callbacks, enforces each property on its own line when there are 2 or more properties

Why: Improves readability of array transformations by making destructured properties easy to scan vertically

const result = items.map((    name,    value,}) => `${name}: ${value}`);

const result = items.map(({ name, value, id }) => `${name}: ${value}`);

"code-style/array-callback-destructure": "error"

Collapse arrays with few items to one line; expand larger arrays with each item on its own line

Why: Prevents overly long single-line arrays while avoiding unnecessary expansion for simple arrays

Options

"code-style/array-items-per-line": ["error", { maxItems: 3 }]

const colors = ["red", "green", "blue"]; const weekdays = [    "Monday",    "Tuesday",    "Wednesday",    "Thursday",    "Friday",];

const weekdays = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"];

"code-style/array-items-per-line": "error"

Each object in an array starts on its own line for better visual scanning

Why: Object literals in arrays are visually complex. Own lines make it easier to scan, compare, and edit

const users = [    { id: 1, name: "Alice" },    { id: 2, name: "Bob" },];

const users = [{ id: 1, name: "Alice" }, { id: 2, name: "Bob" }];

"code-style/array-objects-on-new-lines": "error"