64 lines
984 B
Go
64 lines
984 B
Go
package slice
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func IntersectStrings(a []string, b []string) []string {
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var (
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out = make([]string, 0, len(a)+len(b))
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ah = ToStringBoolMap(a)
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)
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for i := 0; i < len(b); i++ {
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if ah[b[i]] {
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out = append(out, b[i])
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}
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}
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return out
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}
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func ToStringBoolMap(s []string) (h map[string]bool) {
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h = make(map[string]bool)
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for i := 0; i < len(s); i++ {
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h[s[i]] = true
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}
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return
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}
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func ToUint64BoolMap(u []uint64) (h map[uint64]bool) {
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h = make(map[uint64]bool)
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for i := 0; i < len(u); i++ {
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h[u[i]] = true
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}
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return
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}
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func HasString(ss []string, s string) bool {
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for i := range ss {
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if ss[i] == s {
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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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// RemoveString removes one or more strings form the input slice
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func PluckString(ss []string, ff ...string) (o []string) {
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if len(ff) == 0 {
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return ss
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}
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f := ToStringBoolMap(ff)
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o = make([]string, 0, len(ss))
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for _, s := range ss {
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if !f[s] {
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// remove from the list
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o = append(o, s)
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}
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}
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return o
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}
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