44 lines
697 B
Go
44 lines
697 B
Go
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package arrays
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func IndexOf[T comparable](a T, vs []T) int {
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for i, v := range vs {
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if v == a {
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return i
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}
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}
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return -1
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}
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func Exists[T comparable](a T, vs []T) bool {
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return IndexOf(a, vs) > -1
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}
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func Fill[T any](startIndex int, num uint, value T) map[int]T {
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m := make(map[int]T)
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var i uint
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for i = 0; i < num; i++ {
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m[startIndex] = value
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startIndex++
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}
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return m
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}
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func Reverse[T comparable](s []T) []T {
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for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
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s[i], s[j] = s[j], s[i]
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}
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return s
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}
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func Merge[T comparable](ss ...[]T) []T {
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n := 0
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for _, v := range ss {
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n += len(v)
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}
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s := make([]T, 0, n)
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for _, v := range ss {
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s = append(s, v...)
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}
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return s
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}
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