object-properties-newline

Enforce multiline objects when they have two or more properties.

Rule ID: tai-kun/object-properties-newline
Auto-fix: Yes

Inserts a line break after { when an object literal or JSON object has two or more properties and the first property starts on the same line as the brace.

Configuration

Add the rule to lint.rules in vite.config.ts to enable it.

"tai-kun/object-properties-newline": "error",

Examples

Invalid

const value = { a: 1, b: 2 };

Valid

const value = {
  a: 1,
  b: 2,
};

Notes

Sortable objects are skipped because sort-object-properties also makes them multiline.
Use it together with Oxfmt’s objectWrap: "preserve". JSON is formatted with the same setting.
Objects with one property are ignored.
JSON (JSONObjectExpression) is also covered. Each nested object is checked.

sort-object-properties