Exercises & activities from the go workshop provided by Packt: https://courses.packtpub.com/courses/go
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34 lines
550 B
34 lines
550 B
package main
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import (
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"errors"
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"fmt"
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)
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func validate(input int) error {
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if input < 0 {
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return errors.New("input can't be a negatice number")
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} else if input > 100 {
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return errors.New("input can't be over 100")
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} else if input%7 == 0 {
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return errors.New("input can't be divisible by 7")
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} else {
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return nil
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}
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}
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func main() {
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input := 21
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if err := validate(input); err != nil {
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fmt.Println(err)
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} else if input%2 == 0 {
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fmt.Println(input, "is even")
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} else {
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fmt.Println(input, "is odd")
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}
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}
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