// If we have an array, we can define its type in TypeScript by using the notation type[].
let arrayType:string[] = [ 'hello', 'there' ]
// Similarly, an array of numbers could be defined like this:
let myNumbers:number[] = [ 1, 2, 3, 4 ];
let strings: string[] = ['Hello', 'World', '!']
let list: number[] = [1, 2, 3];
var alphas:string[];
alphas = ["1","2","3","4"]
console.log(alphas[0]);
console.log(alphas[1]);