smart_canteen/app/utils/slice.go

package utils

// ContainsString is 字符串是否包含在字符串切片里
func ContainsString(array []string, val string) (index int) {
	index = -1
	for i := 0; i < len(array); i++ {
		if array[i] == val {
			index = i
			return
		}
	}
	return
}

func PaginateSliceInt64(x []int64, skip int, size int) []int64 {
	if skip > len(x) {
		skip = len(x)
	}

	end := skip + size
	if end > len(x) {
		end = len(x)
	}

	return x[skip:end]
}