WordPress at a glance
function is not described

Automattic\WooCommerce\Admin\Overrides

Order::is_returning_customer() public WC 1.0

Returns true if the customer has made an earlier order.

{} It's a method of the class: Order{}

No Hooks.

Return

true|false. Nothing.

Usage

$Order = new Order();
$Order->is_returning_customer();

Code of Order::is_returning_customer() WC 5.3.0

<?php
public function is_returning_customer() {
	return OrdersStatsDataStore::is_returning_customer( $this );
}