cart.add:before

Runs before an item is added to the cart. The item is still whatever the caller passed.

'wagnerwagner.merx.cart.add:before' => function (Wagnerwagner\Merx\Cart $cart, Wagnerwagner\Merx\ListItem|array|string $data): void {}

Parameters

Name	Type	Default
`$cart`	`Cart`	`-`
`$data`	`ListItem` or `array` or `string`	`-`

void