[jokethrowaway]

I don't think chatgpt lacks an explanation. It can explain what it's doing. It's just that it can be completely wrong or the explanation may be correct and the code wrong.

I gave some code to ChatGPT asking to simplify it and it returned the correct code but off by one. It was something dealing with dates, so it was trivial to write a loop checking for each day if the new code matched in functionality the old one.

You will never have certainty the code makes any sense if it's coming from one of these high tech parrots. With a human you can at least be sure the intention was there.

[phoehne]

It’s a very sophisticated form of a recurrent neural network. We used to use those for generating a complete image based on a partial image. The recurrent network can’t explain why it chose to reproduce one image instead of another. Nor can you look at the network and find the fiddly bit that drive that output. You can ask a human why they chose to use an array instead of a hash map, or why static memory allocation in this area avoids corner cases. ChatGPT simply generates the most likely text as an explanation. That’s what I mean about being able to explain something.

[scarface74]

Would you trust code coming from a junior developer more?

[Retric]

Right now yes. Hypothetically that may change but the hype is vastly beyond what it’s actually capable of right now.

[anonzzzies]

Ah the HN echo chamber again! Please visit your local non FAAAM (or what it is now?) fortune 1000, pick a senior dev randomly and work with them for week. Chatgpt is vastly better now, today. Faster, does not need sleep, rest, politeness or handholding, can explain itself (sure it’s wrong often but less wrong than the dev you picked while actually being able to use proper syntax and grammar, unlike the dev you picked) and is, of course, let’s not deny it, way cheaper.

[Retric]

I’ve worked with plenty of jr developers at east coast government contractors, arguably the bottom of the barrel. I would still rather put their code into production, even without unit tests, than I would ChatGPT.

ChatGPT is only cheap if you don’t need its code to do anything of any particular value. It’s a seemingly ideal solution to collage homework for example. But professionally people write code to actually achieve something, this is why programmers actually get paid well in the first place. The point isn’t LOC the point is solving some problem.

[scarface74]

And junior devs are horrible at knowing what problem to solve and how to solve it without handholding. I am working on a relatively complex DevOps/“cloud application modernization” project. Where the heavy lifting is designing the process and gathering requirements. But there are a lot of 20-40 line Lambdas and Python/boto3 (AWS SDK), yaml/json wrangling, dynamic Cloudformation creating scripts.

I was able to give ChatGPT the requirements for all of them. The types of bugs I found during the first pass:

- the AWS SDK and the underlying API only returns 50 results in one call most of the time. From the SDK you have to use the built in “paginators”. ChatGPT didn’t use them the first time. But once I said “this will only return the first 50 results”. It immediately corrected the script and used the paginator. I have also had to look out for similar bugs from junior devs.

- The usual yaml library for Python doesn’t play nicely with CloudFormation templates because of the function syntax that starts with an “!”. I didn’t know this beforehand. But once I told ChatGPT the error, it replaced the yaml handling with cfn-flip.

- I couldn’t figure out for the life of me how to combine the !If function in CloudFormation with a Condition, and a Yaml block that contain another !Select function with two arguments. I put the template block without the conditional and told ChatGPT “make the VPC configuration optional based on a parameter”. It created the Parameter section, the condition and the appropriate Yaml.

I’ve given similar problems to interns/junior devs before and ChatGPT was much better at it.

[Retric]

Reading that I can only assume you’ve made really poor use of Jr developers.

Which ok I get why you think ChatGPT is more useful.

[alxlu]

Doesn’t this only work for relatively contrived situations? I can tell a jr dev to go and add some minor feature in a codebase, put it behind a flag, and add tracking/analytics to it. I can point to the part of the application I want the feature to be added on the screen and the jr devs are often able to find it on their own. I haven’t seen chatGPT do anything like that and I don’t think there is a way to provide it with the necessary context even if it has the capability.

[scarface74]

For me it works for small stand alone utility scripts. But the most impressive thing I was able to get it to do was.

“Given an XML file with the format {[1]} and a DynamoDB table with two fields “Key”, “Value”, write a Python script that replaces the Value in the xml file when the corresponding key is found. Use argparse to let me specify both the input xml file and the output XML”

It spit out perfect Python code. I hadn’t used XML in well over a decade and I definitely didn’t know how to read xml in Python. I didn’t want to bother about learning.

I actually pasted an XML sample like the link below.

[1] https://learn.microsoft.com/en-us/troubleshoot/developer/vis...

[danaris]

Wait, you think "junior developers are actually moderately competent" only makes sense within the HN echo chamber?

I think you have that exactly backwards.

Most junior developers most places may not have the experience of a senior developer, and thus be able to do the translation from business logic to code quite as fast and accurately the first time, but this kind of derogatory attitude toward them is incredibly condescending and insulting.

ChatGPT doesn't know what it's doing. It doesn't know anything, and unlike the most junior developer barely trained, it can't even check its output to see if it matches the desired output.

And for goodness' sake, get rid of the absurd idea that all the competent developers are in Silicon Valley. That's even more insulting to the vast majority of developers in the entire world.