Maps in Go 관련

The Go Handbook – Learn Golang for Beginners

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Golang is an awesome, simple, modern, and fast programming language. It’s compiled, open source, and strongly typed. Golang – also called Go – was created by Google engineers with these main goals: make their projects compile (and run) faster be sim...

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The Go Handbook – Learn Golang for Beginners

Golang is an awesome, simple, modern, and fast programming language. It’s compiled, open source, and strongly typed. Golang – also called Go – was created by Google engineers with these main goals: make their projects compile (and run) faster be sim...

A map is a very useful data type in Go.

In other language it’s also called a dictionary or hash map or associative array.

Here’s how you create a map:

agesMap := make(map[string]int)

You don’t need to set how many items the map will hold.

You can add a new item to the map in this way:

agesMap["flavio"] = 39

You can also initialize the map with values directly using this syntax:

agesMap := map[string]int{"flavio": 39}

You can get the value associated with a key using:

age := agesMap["flavio"]

You can delete an item from the map using the delete() function in this way:

delete(agesMap, "flavio")