Need help with the discount code for my shop

[DeadSEc]

So I was adding a dicount code place in my cart and I want to update the price if the discount is valid but I dont know how to verifie this and get the corresponding value of the discount using the shopify discount code. Can some one explain me how these work?

• discount.amount
• discount.code
• discount.id
• discount.savings
• discount.title
• discount.total_amount
• discount.total_savings
• discount.type