bytes.Contains() function is used to check whether subslice is present within another slice in go. It returns true If present else false.
bytes.Contains() function prototype:
func Contains(b, subslice []byte) bool or func Contains(b []byte, subslice []byte) bool Input parameters: b: byte slice subslice: byte subslice subslice will be checked within byte slice b.
bytes.Contains() function return value:
bytes.Contains() function returns true If subslice is present within another slice else false.
Explanation:
1)
b := []byte("Jhon is attending coding contest")
subslice := []byte("Jhon is attending")
Here, subslice is present within b. So It will return true.
2)
b := []byte("Jhon is attending coding contest")
subslice := []byte("where is he")
Here, subslice is not present within b. So It will return false.
Example:
Code 1:
package main
import (
"fmt"
"bytes"
)
func main() {
// Subslice is present within another slice
b := []byte("Jhon is attending coding contest")
subslice := []byte("Jhon is attending")
is_subslice_pre := bytes.Contains(b, subslice)
fmt.Println("Is subslice present: ", is_subslice_pre)
// Subslice is not present within another slice
b = []byte("Jhon is attending coding contest")
subslice = []byte("where is he")
is_subslice_pre = bytes.Contains(b, subslice)
fmt.Println("Is subslice present: ", is_subslice_pre)
}Output:
Is subslice present: true Is subslice present: false
Code 2:
package main
import (
"fmt"
"bytes"
)
func main() {
// Subslice is present within another slice
b := []byte{10, 20, 30, 40}
subslice := []byte{20, 30}
is_subslice_pre := bytes.Contains(b, subslice)
fmt.Println("Is subslice present: ", is_subslice_pre)
// Subslice is not present within another slice
b = []byte{10, 20, 30, 40}
subslice = []byte{50, 60}
is_subslice_pre = bytes.Contains(b, subslice)
fmt.Println("Is subslice present: ", is_subslice_pre)
}Output:
Is subslice present: true Is subslice present: false
To learn more about golang, Please refer given below link:
References: