Do I Need Pointers to Access Maps in Go?

Pointers to Maps in Go

In Go, maps are reference types, meaning that they are stored in memory by their address. When assigning a map to a variable, the variable holds a reference to the actual map in memory. Attempting to obtain a pointer to a map using the '&' operator (&valueToSomeType) is unnecessary as maps are already passed by reference.

What Went Wrong?

The compiler error mentioned in the original question ("internal compiler error: var without type, init: new"), indicating a separate issue, unrelated to using pointers.

Usage

To access the map using the reference variable, simply use the square bracket notation:

valueFromMap := valueToSomeType[number]

This will retrieve the value associated with the provided key from the map that is referenced by the valueTo variable.

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