WP The Loop

wp-secondary-the-loop.php

<?php
/**
 * World's simplest secondary The Loop
 */

$posts = get_posts( $args );

if ( count( $posts ) ) :
    global $post;
    foreach ( $posts as $post ) :
        setup_postdata( $post );
        the_title( '<h1>', '</h1>' );
    endforeach;
    wp_reset_postdata();
else :
    // Show something to notify there's no post
endif;

wp-the-loop.php

<?php
/**
 * World's simplest The Loop
 */

if ( have_posts() ) :
    while ( have_posts() ) :
        the_post();

        the_title( '<h1>', '</h1>' );
    endwhile;
else :
    // Show something to notify there's no post
endif;