2727. Is Object Empty ¶

TypeScript

type JSONValue =
  | null
  | boolean
  | number
  | string
  | JSONValue[]
  | { [key: string]: JSONValue };
type Obj = Record<string, JSONValue> | JSONValue[];

function isEmpty(obj: Obj): boolean {
  if (Array.isArray(obj)) {
    return obj.length === 0;
  }
  return Object.keys(obj).length === 0;
}