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Ask HN: Golang :how do i handle index out of range error?
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1 points
by pvsukale1
3693 days ago
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I am writing a CLI interface program in Go.my program requires a user to enter a filename as an argument . following is the code I wrote to handle the situations in which user doesn't enter any argument . but it panics and gives an error "index out of range".how do I handle this? if len(os.Args) == 0 {
fmt.Println("usage: gohex <filename>") os.Exit(1)
}
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