example1.ts

const arrayOfStrings2: string[] = [];
let charCounter2 = 0;
arrayOfStrings2.push('hello');
charCounter2 += 'hello'.length;
arrayOfStrings2.push('world');
charCounter2 += 'world'.length;
arrayOfStrings2.push('how are');
charCounter2 += 'how are'.length;
arrayOfStrings2.push('you');
charCounter2 += 'you'.length;

console.log(charCounter2);