Drupal - Create content programmatically

Here's a simple example of creating a node in Drupal 8.

$data = [
  'type' => 'article', 
  'title' => 'My new title', 
  'uid' => 1
];
$node = Drupal::entityTypeManager()
  ->getStorage('node')
  ->create($data);
$node->save();

Updated to remove deprecated function as per comments from @mradcliffe. Thanks!

FYI, for testing out little snippets of code like this, the drush core-cli command works great. See: http://www.drushcommands.com/drush-7x/core/core-cli