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45 lines
557 B
45 lines
557 B
2 years ago
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## firstrune
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### Instructions
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Write a function that returns the first `rune` of a `string`.
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### Expected function
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```go
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func FirstRune(s string) rune {
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}
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```
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### Usage
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Here is a possible program to test your function :
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```go
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package main
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import (
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"github.com/01-edu/z01"
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)
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func main() {
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z01.PrintRune(FirstRune("Hello!"))
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z01.PrintRune(FirstRune("Salut!"))
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z01.PrintRune(FirstRune("Ola!"))
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z01.PrintRune('\n')
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}
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```
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And its output :
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```console
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$ go run .
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HSO
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$
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```
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### Notions
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- [rune-literals](https://golang.org/ref/spec#Rune_literals)
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