Question 1

How do I convert a slice to a set using golang-set?

Accepted Answer

Use the NewSetFromSlice constructor or iterate through the slice with Add. The library provides convenient methods for converting from slices or maps, as shown in the documentation.

Question 2

Is golang-set threadsafe out of the box?

Accepted Answer

No, you must explicitly choose the threadsafe implementation (e.g., NewThreadSafeSet) for concurrent access. The non-threadsafe version is default for performance, so concurrency handling is up to the developer.

Question 3

golang-set vs using a map for unique collections – which is better?

Accepted Answer

golang-set is better for complex set operations like union or intersection, as it provides built-in methods. For simple uniqueness, a map might be faster and lighter, but lacks dedicated set functionality.

Question 4

How to perform set difference with golang-set?

Accepted Answer

Call the Difference method on a set, passing another set as an argument. It returns a new set with elements in the first but not the second, similar to Python's set difference.

Question 5

What types can I use with golang-set generics?

Accepted Answer

Any comparable type in Go, including primitives, pointers, arrays, and structs with all comparable fields. The library leverages Go's type constraints to ensure safety, as explained in the usage section.

Question 6

Does golang-set support iteration in older Go versions?

Accepted Answer

Yes, but with limitations. For Go 1.23+, it has true iterators; for older versions, use methods like Range or convert to a slice, as noted in the update about iteration behavior changes.

golang-set

What is golang-set?

Overview

Use Cases

Best For

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions