48 lines
833 B
Go
48 lines
833 B
Go
package helper
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import (
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"reflect"
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"strings"
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)
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func IsContainInArr[T comparable](a T, arr []T) bool {
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for _, v := range arr {
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if a == v {
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return true
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}
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}
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return false
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}
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func StructColumn[T any, M any](arr []M, field string) (r []T) {
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for i := 0; i < len(arr); i++ {
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v := reflect.ValueOf(arr[i]).FieldByName(field).Interface()
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if val, ok := v.(T); ok {
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r = append(r, val)
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}
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}
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return
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}
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func RangeSlice[T ~int | ~uint | ~int64 | ~int8 | ~int16 | ~int32 | ~uint64](start, end, step T) []T {
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r := make([]T, 0, int(end/step+1))
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for i := start; i <= end; {
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r = append(r, i)
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i = i + step
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}
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return r
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}
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func StrJoin(s ...string) (str string) {
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if len(s) == 1 {
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return s[0]
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} else if len(s) > 1 {
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b := strings.Builder{}
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for _, s2 := range s {
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b.WriteString(s2)
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}
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str = b.String()
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}
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return
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}
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