Function isArray

packages/@ember/array/index.ts:168–198

(obj: unknown)

  @public
*/
export function isArray(obj: unknown): obj is ArrayLike<unknown> | EmberArray<unknown> {
  if (DEBUG && typeof obj === 'object' && obj !== null) {
    // SAFETY: Property read checks are safe if it's an object
    let possibleProxyContent = (obj as any)[PROXY_CONTENT];
    if (possibleProxyContent !== undefined) {
      obj = possibleProxyContent;
    }
  }

  // SAFETY: Property read checks are safe if it's an object
  if (!obj || (obj as any).setInterval) {
    return false;
  }

  if (Array.isArray(obj) || EmberArray.detect(obj)) {
    return true;
  }

  let type = typeOf(obj);
  if ('array' === type) {
    return true;
  }

  // SAFETY: Property read checks are safe if it's an object
  let length = (obj as any).length;
  if (typeof length === 'number' && length === length && 'object' === type) {
    return true;
  }

  return false;
}

/*
  This allows us to define computed properties that are not enumerable.