Core Mapkeys

docs/data/core-mapkeys.md

1.53.0210 B

Transforms map keys using a predicate while keeping values.

in := map[int]int{1:1, 2:2}
out := lo.MapKeys(in, func(v int, _ int) string {
    return strconv.Itoa(v)
})
// map[string]int{"1":1, "2":2}