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function is not described

is_post_status_viewable() WP 5.7.0

Determine whether a post status is considered "viewable".

For built-in post statuses such as publish and private, the 'public' value will be evaluted. For all others, the 'publicly_queryable' value will be used.

No Hooks.

Return

true|false. Whether the post status should be considered viewable.

Usage

is_post_status_viewable( $post_status );
$post_status(string|stdClass) (required)
Post status name or object.

Changelog

Since 5.7.0 Introduced.

Code of is_post_status_viewable() WP 5.7

<?php
function is_post_status_viewable( $post_status ) {
	if ( is_scalar( $post_status ) ) {
		$post_status = get_post_status_object( $post_status );
		if ( ! $post_status ) {
			return false;
		}
	}

	if (
		! is_object( $post_status ) ||
		$post_status->internal ||
		$post_status->protected
	) {
		return false;
	}

	return $post_status->publicly_queryable || ( $post_status->_builtin && $post_status->public );
}