How to add webp images to wordpress

How to add webp images to wordpress – Go to functions.php in wordpress (Appearance – theme editor – functions.php). Copy the code below and paste in functions.php

//WEBP
function webp_upload_mimes($existing_mimes) {
    $existing_mimes['webp'] = 'image/webp';
    return $existing_mimes;
}
add_filter('mime_types', 'webp_upload_mimes');

//PREVIEW WEBP
function webp_is_displayable($result, $path) {
    if ($result === false) {
        $displayable_image_types = array( IMAGETYPE_WEBP );
        $info = @getimagesize( $path );
        if (empty($info)) {
            $result = false;
        } elseif (!in_array($info[2], $displayable_image_types)) {
            $result = false;
        } else {
            $result = true;
        }
    }
    return $result;
}
add_filter('file_is_displayable_image', 'webp_is_displayable', 10, 2);