How to get the order ID on the store thanks page

[Shopflyer]

I'm working on an app recently, which is used to track the distributor of the order, so I need to get the order ID on the thank you page. How should I do this? This problem bothered me for a long time.

[DivinityWebS · Accepted solution]

You can get the order ID on the thank you page in JavaScript file by this variable "Shopify.checkout.order_id"

[Shopflyer]

Thank you very much for your answer

[LCtest]

Shopify.checkout isn't available on many stores. Do you know what could be the possible reason for this? Also, any alternatives to get order ID if checkout object isn't accessible?