underscore/docs/content/collections/map.md
Ruidy 1031038d42
feat: add Chunk, ContainsBy, UniqueBy, ParallelMap, map helpers
- Add `Chunk` to split slices into groups of size n.
- Add `ContainsBy` for predicate-based containment checks.
- Add `UniqueBy` to deduplicate slices by key selector.
- Add `ParallelMap` for concurrent mapping with context and error
handling.
- Add `maps.Keys` and `maps.Values` helpers for extracting map
keys/values.
- Update README and docs for new features.
- Refactor `Contains` to use `slices.Contains`.
2025-09-01 18:03:38 -04:00

24 lines
372 B
Markdown

---
title: "Map"
date: 2022-03-21T13:32:10-04:00
---
`Map` produces a new slice of values by mapping each value in the slice through a
transform function.
```go
package main
import (
"fmt"
u "github.com/rjNemo/underscore"
)
func main() {
nums := []int{1, 2, 3}
toSquare := func(n int) int {
return n * n
}
fmt.Println(u.Map(nums, toSquare)) // {1, 4, 9}
}
```