I am working on my first WordPress theme using underscores, I have already added the ‘featured post’ code in the functions. Php and called it from the ‘loop’ in the ‘single. Php. But I ended up getting featured images only when I view a post, and not on the homepage, I will appreciate if someone can help me with this. Thanks!
This is in my functions.php file

add_theme_support( 'post-thumbnails' );
set_post_thumbnail_size( 590, 180); // 590 pixels wide by 180 pixels tall, resize mode

this is the code in my single.php

<?php   while ( have_posts() ) : the_post(); if( has_post_thumbnail() ):
echo get_the_post_thumbnail(); endif; 

Sorry, it’s my first time here…

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