mirror of
https://github.com/samber/lo.git
synced 2026-04-22 23:47:11 +08:00
Samuel Berthe
fa095e4b4f
* fix(doc): fix go playground demo URL * fix(doc): add more go playground demo URL
30 lines
674 B
Markdown
30 lines
674 B
Markdown
---
|
|
name: FindDuplicatesBy
|
|
slug: findduplicatesby
|
|
sourceRef: find.go#L234
|
|
category: core
|
|
subCategory: find
|
|
playUrl: https://go.dev/play/p/LKdYdNHuGJG
|
|
variantHelpers:
|
|
- core#find#findduplicatesby
|
|
- core#find#findduplicatesbyerr
|
|
similarHelpers:
|
|
- core#find#findduplicates
|
|
- core#find#finduniques
|
|
- core#find#finduniquesby
|
|
position: 130
|
|
signatures:
|
|
- "func FindDuplicatesBy[T any, U comparable, Slice ~[]T](collection Slice, iteratee func(item T) U) Slice"
|
|
---
|
|
|
|
Returns a slice with the first occurrence of each duplicated element by key, preserving order.
|
|
|
|
```go
|
|
lo.FindDuplicatesBy([]int{3, 4, 5, 6, 7}, func(i int) int {
|
|
return i % 3
|
|
})
|
|
// []int{3, 4}
|
|
```
|
|
|
|
|