Go Maps
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External
Internal
Overview
Maps and Pass-by-Value
Pointers to Maps
nil and Empty Map
nil Map
Empty Map
Declaration and Initialization
Initialization with make()
Initialization with a Composite Literal
Composite literals can be used for map initialization. Long variable declaration and initialization with type inference:
var mm = map[string]int {"A:1, "B":2}
mm := map[string]int {"A:1, "B":2}