Golang Slices are Dangerous
The headline is a little bit click-bait-y, but I want to highlight one of the easily overlooked risks of using slices in Golang. First of all, there’s nothing really wrong with the way slices work. A trade-off was made. It is not necessarily the same trade-off I would make, but such is engineering.
Consider Arrays
First, let’s map what a slice is because it might not be obvious unless you’ve
been writing Golang programs for a while. Let’s start by thinking about an
array. In Golang, an array is a fixed string of elements of a given type. For
example, we might define an array of int32 with ten elements as follows:
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