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slice.go
46 lines (41 loc) · 742 Bytes
/
slice.go
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package nunela
func every[T any](s []T, f func(int, T) bool) bool {
for i, v := range s {
if !f(i, v) {
return false
}
}
return true
}
func mapSlice[T any, U any](sl []T, f func(T) U) []U {
out := make([]U, 0, len(sl))
for _, v := range sl {
out = append(out, f(v))
}
return out
}
func rangeSlice(len int) []int {
s := make([]int, len)
for i := range s {
s[i] = i
}
return s
}
func keys[K comparable, V any](m map[K]V) []K {
s := make([]K, 0, len(m))
for key := range m {
s = append(s, key)
}
return s
}
// func equal[T comparable](xs []T, ys []T) bool {
// if len(xs) != len(ys) {
// return false
// }
// for i := range xs {
// if xs[i] != ys[i] {
// return false
// }
// }
// return true
// }