MaysWind
39 lines
660 B
Go
39 lines
660 B
Go
package utils
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func Int64SliceMinus(s1, s2 []int64) []int64 {
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if s1 == nil {
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return nil
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}
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s2ItemsMap := make(map[int64]bool)
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var ret []int64
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for i := 0; i < len(s2); i++ {
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s2ItemsMap[s2[i]] = true
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}
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for i := 0; i < len(s1); i++ {
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if _, exists := s2ItemsMap[s1[i]]; !exists {
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ret = append(ret, s1[i])
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}
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}
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return ret
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}
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func ToUniqueInt64Slice(items []int64) []int64 {
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var uniqueItems []int64
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itemExistMap := make(map[int64]bool)
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for i := 0; i < len(items); i++ {
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item := items[i]
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if _, exists := itemExistMap[item]; !exists {
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uniqueItems = append(uniqueItems, item)
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itemExistMap[item] = true
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}
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}
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return uniqueItems
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}
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