优化filter

This commit is contained in:
xing 2022-09-24 23:04:24 +08:00
parent bdfc171dec
commit acd695709c

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@ -191,13 +191,14 @@ func SliceMap[T, R any](arr []T, fn func(T) R) []R {
}
func SliceFilter[T any](arr []T, fn func(T) bool) []T {
var r []T
j := 0
for _, t := range arr {
if fn(t) {
r = append(r, t)
arr[j] = t
j++
}
}
return r
return arr[:j]
}
func SliceReduce[T, R any](arr []T, fn func(T, R) R, r R) R {