Files
bl/common/utils/help.go
2025-11-23 23:38:03 +00:00

20 lines
455 B
Go
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

package utils
func FindWithIndex[T any](slice []T, predicate func(item T) bool) (int, *T, bool) {
for i := range slice {
if predicate(slice[i]) {
return i, &slice[i], true
}
}
return -1, nil, false
}
func LastFourElements[T any](s []T, n1 int) []T {
n := len(s)
if n <= n1 {
// 切片长度小于等于4时返回整个切片
return s
}
// 切片长度大于4时返回最后4个元素从n-4索引到末尾
return s[n-n1:]
}