If you want to know if "Hello" is included in "Hello, World!", Use string.Contains("Hello, World!","Hello").
If you want to know whether "1" is included in []string{"1", "2", "3"}, you have to implement it yourself.
At that time, I made something that was put together and can be used even a little.
go get -u github.com/go-utils/cont
import (
"fmt"
"time"
"github.com/go-utils/cont"
)
func main() {
if cont.Contains([]string{"1", "2", "3"}, "1") {
fmt.Println("ex1: OK!")
}
if cont.Contains([]int{1, 2, 3}, 1) {
fmt.Println("ex2: OK!")
}
if cont.Contains("123", "1") {
fmt.Println("ex3: OK!")
}
now := time.Now()
mp := map[string]interface{}{"a": "1", "b": 2, "c": "3", "d": now}
if cont.Contains(mp, now) {
fmt.Println("ex4: OK!")
}
if cont.Contains(mp, 2) {
fmt.Println("ex5: OK!")
}
if cont.Contains(mp, "c") {
fmt.Println("ex6: OK!")
}
}ex1: OK!
ex2: OK!
ex3: OK!
ex4: OK!
ex5: OK!
ex6: OK!
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string, slice, array, map