[Solved] How to update a struct property in a map [duplicate]

Question

You have a map of string to the value of TeamRow so when you get the val out of the map it returns the value of the team, not a pointer to the team. If you make the map a string to the pointer of TeamRow then when you get the val out it will point to the memory that is stored in the map so values will persist beyond the scope of your AddLoss function. To do this simply add a * to the map declaration – teamMap map[string]*TeamRow though when you populate it you will then also need to store pointers in the map.

Accepted Answer

You have a map of string to the value of TeamRow so when you get the val out of the map it returns the value of the team, not a pointer to the team. If you make the map a string to the pointer of TeamRow then when you get the val out it will point to the memory that is stored in the map so values will persist beyond the scope of your AddLoss function. To do this simply add a * to the map declaration – teamMap map[string]*TeamRow though when you populate it you will then also need to store pointers in the map.