WP Theme Function For Excerpt Replace "Read More"

WP_Replace_Excerpt_Function.php

/**
 * Filter the "read more" excerpt string link to the post.
 *
 * @param string $more "Read more" excerpt string.
 * @return string (Maybe) modified "read more" excerpt string.
 */
function wpdocs_excerpt_more( $more ) {
    return sprintf( '<a class="read-more" href="%1$s">%2$s</a>',
        get_permalink( get_the_ID() ),
        __( 'Read More', 'textdomain' )
    );
}
add_filter( 'excerpt_more', 'wpdocs_excerpt_more' );

// Replaces the excerpt "Read More" text by a link
function new_excerpt_more($more) {
       global $post;
	return '<a class="moretag" href="'. get_permalink($post->ID) . '">...</a>';
}
add_filter('excerpt_more', 'new_excerpt_more');