Pangram

I wrote my first program for Pangram in JS here and attempted few variations to optimize the readability and execution time. This time the code challenge was in Golang and it was satisfying attempt to do in first try.

Determine if a sentence is a pangram. A pangram (Greek: παν γράμμα, pan gramma, “every letter”) is a sentence using every letter of the alphabet at least once. The best known English pangram is:

The quick brown fox jumps over the lazy dog.

package pangram

import "strings"

// Alphabets all the characters.
const Alphabets string = "abcdefghijklmnopqrstuvqxyz"

// IsPangram checks for pangram in the inputs string.
func IsPangram(in string) bool {
    in = strings.ToLower(strings.TrimSpace(in))
    if in == "" {
        return false
    }

    for _, v := range Alphabets {
        if strings.IndexRune(in, v) < 0 {
            return false
        }
    }
    return true
}

I could have simplified it further by instead of having the const Alphabets just loop through rune 'a' to 'z'.

The code is simple enough to go through, where I check in for the index of all the runes in the string Alphabets and if any one is not found, it is not a PANGRAM.

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