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33 lines
562 B
Go
33 lines
562 B
Go
package utils
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import (
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"math/rand"
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"time"
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)
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var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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func RandString(n int) string {
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b := make([]rune, n)
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for i := range b {
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b[i] = letterRunes[rand.Intn(len(letterRunes))]
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}
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return string(b)
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}
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func Unique(arr []string) []string {
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unique := make(map[string]bool)
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var result []string
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for _, item := range arr {
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if _, ok := unique[item]; !ok {
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unique[item] = true
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result = append(result, item)
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}
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}
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return result
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}
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