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6 years ago
## index
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### Instructions
Write a function that behaves like the [`Index`](https://golang.org/pkg/strings/#Index) function.
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### Expected function
```go
func Index(s string, toFind string) int {
}
```
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### Usage
Here is a possible program to test your function :
```go
package main
import (
"fmt"
piscine ".."
)
func main() {
fmt.Println(piscine.Index("Hello!", "l"))
fmt.Println(piscine.Index("Salut!", "alu"))
fmt.Println(piscine.Index("Ola!", "hOl"))
}
```
And its output :
```console
student@ubuntu:~/[[ROOT]]/test$ go build
student@ubuntu:~/[[ROOT]]/test$ ./test
2
1
-1
student@ubuntu:~/[[ROOT]]/test$
```