August 2019
Beginner to intermediate
798 pages
17h 2m
English
Content preview from Mastering Go - Second Edition
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When you should use a map
Maps are more versatile than both slices and arrays but this flexibility comes at a cost: the extra processing power required for the implementation of a Go map. However, built-in Go structures are very fast, so do not hesitate to use a Go map when you need to. What you should remember is that Go maps are very convenient and can store many different kinds of data, while being both easy to understand and fast to work with.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.