Go - User Input
Beginner 10/10
Teacher 10/10
Architect 10/10
Try it: Prompt for a name and echo it back.
Scanner
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan(){
line := scanner.Text()
fmt.Println("got:", line)
}
fmt.Scanf
var n int
fmt.Scanf("%d", &n)
Common errors
- Not checking
scanner.Err()after scanning loop.
Practice
- Read integers line by line and sum them; stop on empty line.
Quick quiz
- What does
Scanreturn when input ends?
Show answer
It returnsfalse; check Err() for any error vs EOF.