What happens if you change a character in a string?

let firstName = 'Alexander';
// the code will run correctly
firstName[0] = 'B';
console.log(firstName); // => 'Alexander'

Oddly, the value of the firstName variable remains the same, and the code is executed without errors. This is possible due to the immutability of primitive types in JavaScript. There are no ways to change a string itself. The immutability of primitives is important for many reasons, and performance is a key one. But how do we edit a string? We have variables for this purpose:

let firstName = 'Alexander';
// the code will run correctly
firstName = 'Blexander'
console.log(firstName); // => 'Blexander'

There is a big difference between changing the value of a variable and the value itself. You can't change primitive types in JavaScript (but you can change composite types, learn more about this on Hexlet), but changing the value of a variable is not a problem.

Here are three constants with different people's names. Make up and print a word out of the characters in this order:

1. The third character from the first line.
2. The second character from the second line.
3. The fourth character from the third line.
4. The fifth character from the second line.
5. The third character from the second line.

Try using interpolation: you can put individual characters (called via square brackets) inside curly brackets, as well as variables.