javascript string to ascii array
let unicodeInteger = 97;
String.fromCharCode(unicodeInteger); // 'a'
// the String method fromCharCode converts any integer that is used
// for unicode character indexing into its relative chracter
// 97 - 122 is a - z
// 65 - 90 is A - Z
// try it out in the w3schools editor
// https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_fromcharcode