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Chat GPT and refactor?

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Chat GPT and refactor?

2024-05-10 Paweł Majewski 0 Comments

In this post How to generate website using Chat GPT I checked how ChatGPT is doing with generating the layout.

Today, we will see how it copes with the refactoring.

Variables chain

var x = 5;
var a = x;
var b = a;
var c = b;
Console.WriteLine(c);
var d = c;
var e = d;
var f = e + 1;
var g = f;
var h = g;
Console.WriteLine(g);

That’s not exactly what I meant.

Let’s try it differently.

Much better.

Complicated LINQ

int[] numbers = { 1, 2, 3, 4, 5 };

var result = numbers
    .Where(n => n % 2 == 0)
    .Select(n => n * n)
    .OrderByDescending(n => n)
    .Skip(1)
    .TakeWhile((n, index) => index < 2 || n > 10)
    .Sum();

Console.WriteLine(result);

Okay, time to ask ChatGPT what can we do with this piece of code.

I’m pasting here the code provided by ChatGPT, which allows you to verify that I’m not lying.

int[] numbers = { 1, 2, 3, 4, 5 };

var result = numbers
    .Where(n => n % 2 == 0)
    .Select(n => n * n)
    .OrderByDescending(n => n)
    .TakeWhile((n, index) => index < 2 || (index == 2 && n > 10))
    .Sum();

Console.WriteLine(result);

This code changes the result. The original code returned 4, but now it’s 20. Tell that to ChatGPT and watch how it will react.

int[] numbers = { 1, 2, 3, 4, 5 };

var result = numbers
    .Where(n => n % 2 == 0)
    .Select(n => n * n)
    .OrderByDescending(n => n)
    .TakeWhile((n, index) => index < 2 || (index == 2 && n > 10))
    .Sum();

Console.WriteLine(result);

Ok, let’s see.

ChatGPT said that this code would now return 4 as a result, but as you can see, it’s still 20.

My answer for this is

Yes, I know ChatGPT is capable of performing good refactoring, but we still need to double-check everything based on ChatGPT’s answer.

ChatGPT is wonderful tool, but again – it’s not medicine for every problem.

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