2017-5: DNA?

Write a function that takes a string representing a nucleotide and returns a 1 if it is a valid DNA string, 0 otherwise. In other words, are all the characters in the string in the set 'ACGT'?

Examples:

     (your_function) 'ATGCTTCAGAAAGGTCTTACG'
1
     (your_function) 'Dyalog'
0
     (your_function) ''       ⍝ an empty string is valid
1
     (your_function) 'T'      
1  

your_function ← ✔ Test

Solutions

3:54

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