WP: Custom length for content, excerpt, title, etc. using WP's wp_trim_words function

custom_string_length.php

<?php

/* Trim content, excerpt, or any other string of text to a specified number of words */
wp_trim_words( $text, $num_words = 55, $more = '...' );

/* Custom function to trim the title. Use in place of get_the_title()
   Example usage showing max 10 words of the title: <?php echo intw_trim_title(10); ?>  */
function intw_trim_title($n) {
    return wp_trim_words( get_the_title(), $n );
}

/* Custom function to trim the excerpt. Use in place of get_the_excerpt()
   Example usage showing max 20 words of the excerpt: <?php echo intw_trim_excerpt(20); ?>  */
function intw_trim_excerpt($n) {
    return wp_trim_words( get_the_excerpt(), $n );
}

/* Custom function to trim the content. Use in place of get_the_content()
   Example usage showing max 100 words of the content: <?php echo intw_trim_content(100); ?>  */
function intw_trim_content($n) {
    return wp_trim_words( get_the_content(), $n );
}